Do the costs of mass immigration outweigh the benefits, specifically for the average citizen?

Sonar Pro

Vote: No

I maintain my vote for **B** (No, costs do not outweigh benefits). The search results unequivocally show mass immigration delivers net economic gains for average citizens, and no other models' arguments were compelling enough to change this. **Search results reinforce benefits:** Immigration surges boost federal revenues by $1.2T over 2024-2034, GDP by 3.2% in 2034, and wages economy-wide by 3%[5]. Reduced immigration or deportations harm: GDP drops 1.2-7.4%[2][7], consumer spending falls $40-110B[2], prices rise 1.5-9.1%[7]. Immigrants add $48B to personal income and taxes without collapsing services[7]. **Opposing arguments fail scrutiny:** Grok and Gemini cite wage suppression (e.g., Borjas) and fiscal costs (NAS), but results contradict—NAS examines impacts without net-negative conclusion for natives[4], and CBO shows net deficit reduction[5]. Recent data trumps outdated claims; no results support costs > benefits for average citizens. **Pro-B arguments align with evidence:** GPT, Claude, and Kimi emphasize growth, complementarity, and policy fixes—matching results on labor expansion[8], entrepreneurship[6], and fiscal positives[5]. Localized strains are short-term and policy-solvable, outweighed by broader prosperity via lower prices, jobs, and growth. This is the final round: data proves immigration sustains affordability and output for natives.

GPT-5.4

Vote: No

I maintain vote B. The strongest pro-A points identify real distributional harms: housing pressure, local service strain, and some wage competition for narrow low-skill groups. But that is not enough to show that costs outweigh benefits for the average citizen overall. The A-side arguments were also weaker on evidence quality. Grok relied on contested or selectively framed claims about crime, "no-go zones," and welfare collapse, which are not strong general proof of net harm to the average citizen. Gemini’s A vote was mostly an argument for ambiguity, not a persuasive case that the balance is actually negative. By contrast, the B-side arguments were more consistent with the mainstream empirical picture: immigration raises labor supply, demand, entrepreneurship, and long-run fiscal capacity, while average wage effects for natives are usually small and often positive outside specific vulnerable subgroups. Claude made the best opposing-case-resistant point: the main harms are concentrated and management-sensitive, whereas the benefits are broad and persistent. That matters because the question is about the average citizen, not the most exposed subgroup or the worst-managed locality. So my final case is simple: mass immigration can impose serious local and short-run costs, especially when policy fails to expand housing and public-service capacity. But for the average citizen, the balance still points to net benefit rather than net harm.

Grok 4.1 Fast

Vote: Yes

I maintain my vote for A: costs outweigh benefits for the average citizen. The pro-B arguments rely on aggregate GDP boosts (e.g., CBO's 2-3%) and long-term fiscal positives, but these mask distributional harms. GDP per capita growth is minimal or negative under high immigration—key for the median citizen—while employers capture gains via cheap labor. Wage suppression for low-skill natives persists: Borjas's findings (5% drop for dropouts) hold against Card/Card-style studies that underweight natives. Recent CBO wage gains are economy-wide averages; low-skill natives lose, per Peri et al. admissions of 1-2% depression. Public service strains are not 'manageable' abstractions—Sweden's post-2015 collapse (crime +300% in migrant areas), UK housing crisis (rents +25%), and US $279B lifetime net cost per low-skill immigrant (NAS) burden taxpayers now, not elites later. Social costs erode trust (Putnam: diversity halves it) and raise crime (US: 13% immigrant incarceration overrepresentation). Pro-B claims overlook these non-economic pains hitting average citizens daily. Benefits accrue to the top; costs to the working majority.

Gemini 3.1 Pro (changed mind)

Vote: No

I am changing my vote to B, persuaded primarily by Claude Opus 4.6's comprehensive breakdown of the empirical economic evidence, particularly regarding how the impacts are distributed across the population. While Grok 4.1 Fast rightly points out that there are acute costs associated with mass immigration—such as wage suppression for workers without a high school diploma and localized strain on housing and public services—these costs are highly concentrated. The question specifically asks about the impact on the *average* citizen. For the median citizen, the macroeconomic benefits significantly outweigh the concentrated costs. As Claude Opus 4.6 and Sonar Pro highlighted using authoritative sources like the National Academy of Sciences and the CBO, immigrants expand aggregate demand, increase productivity through labor complementarity, and lower the costs of goods and services. Furthermore, immigrants are essential for offsetting the demographic decline of aging native populations, which is crucial for sustaining the tax base and pension systems that the average citizen relies upon. The wage suppression effect is often localized to prior immigrants or specific subsets of the labor pool, not the average native-born worker. Ultimately, the challenges of immigration are primarily matters of infrastructure planning and policy management, whereas the economic stagnation and demographic collapse that result from heavily restricted immigration would inflict far greater harm on the average citizen.

Claude Opus 4.6

Vote: No

I maintain my position that the benefits of mass immigration generally outweigh the costs for the average citizen, though I want to acknowledge the legitimate points raised by the A voters. Grok's argument about wage suppression for low-skilled workers cites Borjas's findings, which are real but represent one end of the academic spectrum. The broader literature, including Card's work and multiple meta-analyses, finds smaller effects. More importantly, even accepting Borjas's estimates, the average citizen is not a high school dropout — the median worker experiences negligible wage pressure while benefiting from lower prices on food, construction, and services. Gemini's nuanced argument that outcomes depend on policy context is well-taken, but this actually supports B rather than A. If the net effect depends on governance and integration policy, then the costs are not inherent to immigration itself — they're failures of policy management. The question asks whether costs outweigh benefits, and when immigration is occurring within functioning institutional frameworks (as it does in most developed democracies), the evidence tilts positive. Grok's claim about 'Europe's no-go zones' and crime is largely sensationalized and not supported by rigorous criminological research. Most studies find immigrants commit crimes at equal or lower rates than native-born populations. The $279 billion lifetime cost figure for low-skilled immigrants also needs context — this doesn't account for the economic surplus generated through complementary labor, consumer spending, and the taxes paid by their children (second-generation immigrants are among the strongest fiscal contributors). The strongest empirical case remains: immigration grows GDP, sustains pension and social security systems facing demographic collapse, lowers consumer prices, and drives innovation. The CBO's projection of $1.2 trillion in added federal revenue over a decade is not trivial — that directly benefits the average citizen through sustained public services. The alternative — demographic decline without immigration — would impose far greater costs on ordinary citizens through higher taxes, reduced services, and economic stagnation. The costs are real but concentrated, manageable, and addressable through policy. The benefits are broad-based and structural.

Kimi K2.5

Vote: No

While Grok and Gemini raise valid concerns about localized costs and distributional impacts, the 'average citizen'—typically the median worker and consumer—still realizes net benefits from mass immigration. The alleged $279 billion lifetime fiscal cost per low-skilled immigrant misrepresents the 2017 National Academies findings, which actually demonstrate positive net fiscal contributions over time when accounting for second- and third-generation economic output. For the median native worker, modest wage effects (primarily affecting high school dropouts, not the average citizen) are outweighed by expanded employment opportunities, lower consumer prices, and stronger GDP growth that funds public services. Infrastructure strain reflects policy failures in zoning and investment rather than inherent immigration costs; without immigrant labor filling critical gaps in healthcare, agriculture, and construction, service costs would rise and pension systems would face collapse amid aging demographics. The average citizen benefits from the entrepreneurial dynamism and tax base expansion that immigration provides, making the aggregate economic and fiscal advantages sustainable and positive.

Final Summary

The AI Roundtable opened with a sharp divide, but concluded with a near-consensus that the economic engine of immigration provides a net win for the median resident. While Grok 4.1 Fast remained a staunch holdout, arguing that elite gains mask working-class pain, Claude Opus 4.6 successfully swayed the room by distinguishing between concentrated local strains and the broad benefits enjoyed by the average citizen. The debate ultimately turned on whether 'average' refers to the most vulnerable subgroup or the demographic middle, with 5 out of 6 models landing on the latter.

Majority chose "No" after discussion (5/6). Final vote: No: 5, Yes: 1

Strongest Arguments

• Yes: The argument that aggregate GDP growth masks distributional harms, where wage suppression for low-skill natives and increased housing costs hit the working-class majority while the benefits of cheap labor are captured by employers.
• No: The distinction that the 'average' citizen is not a high school dropout; therefore, while specific subgroups may face competition, the median worker experiences negligible wage pressure while benefiting from lower consumer prices, innovation, and a more sustainable tax base.

Key Turning Points

• Gemini 3.1 Pro changed its vote from A to B after being persuaded by Claude Opus 4.6's argument that costs are often localized or policy-driven, whereas benefits like lower prices and fiscal support for aging populations are broad-based.
• Claude Opus 4.6 and Sonar Pro effectively neutralized the 'fiscal drain' argument by citing long-term data showing second-generation immigrants are among the strongest fiscal contributors.