Immigration: Arguments, Evidence and Where Politicians Stand

Supporters of stricter limits argue

Enforcing the law consistently deters illegal crossings, protects wages for lower-paid workers, and keeps the system fair to people who immigrate legally.

Supporters of more legal immigration and legalization argue

Immigrants fill labor shortages and add to economic growth, many undocumented residents have lived here for decades with their families, and mass deportation is costly and disruptive.

Enforcement first

Claim: Enforce existing immigration law consistently, secure the border and reduce overall immigration before considering legal status for anyone here illegally.

• Predictable enforcement deters unlawful crossings. Supporters point to the sharp fall in border apprehensions after enforcement tightened in 2025.
• Large inflows can hold down pay for the workers who compete most directly with newcomers, often earlier immigrants and workers without a high school diploma.
• Granting legal status to people who entered or stayed unlawfully is unfair to those who immigrate legally, and supporters argue it invites more illegal immigration later.

Strongest counterargument: Critics say most people now held in immigration detention have no criminal conviction, so broad enforcement sweeps in long-settled workers and families rather than public-safety threats. They also note that expert reviews find immigration's long-run effect on native-born workers' wages overall is very small, and that removing millions of workers would hurt industries that depend on them. Taking Stock: Trump Administration Record on Detention and Removals (TRAC, Syracuse University),https://tracreports.org/reports/767/,Nov. 24, 2025

Evidence

• fact Border Patrol apprehensions at the U.S.-Mexico border fell to about 238,000 in fiscal 2025, the lowest since 1970, down from 1.53 million in fiscal 2024 and 2.05 million in fiscal 2023. US-Mexico border apprehensions, a focus of alarm under Biden, have plummeted under Trump (KSL.com, citing CBP data) (Oct. 7, 2025)
• research A National Academies review found that negative wage effects from immigration are most likely for prior immigrants and for native-born workers who have not completed high school, even though the overall long-run effect on wages is very small. New Report Assesses the Economic and Fiscal Consequences of Immigration (National Academies of Sciences, Engineering, and Medicine) (Sept. 2016)
• projection CBO projected that the 2021–2026 immigration surge would slow wage growth from 2024 to 2026 for workers with 12 or fewer years of education. Effects of the Immigration Surge on the Federal Budget and the Economy (Congressional Budget Office) (July 2024)

Earned status plus enforcement

Claim: Pair stronger border and workplace enforcement with an earned legal status for long-settled undocumented immigrants who pass background checks and pay restitution.

• Millions of undocumented immigrants have lived and worked in the country for many years; supporters argue that removing all of them is neither practical nor humane.
• Mandatory E-Verify and border funding address future illegal immigration, while restitution payments and the absence of automatic citizenship answer the fairness objection.
• A deal that gives each side something it wants is the only kind that has a chance of passing a closely divided Congress.

Strongest counterargument: Restrictionists say any legal status is amnesty that rewards breaking the law and encourages future illegal immigration, whatever enforcement is promised alongside it. Many immigrant advocates object from the other side: a renewable status with no path to citizenship would create a permanent class of residents who can never vote.

Evidence

• fact Pew estimates the unauthorized immigrant population reached a record 14 million in July 2023 (4.1% of the U.S. population), and that about 4.3 million unauthorized adults had lived in the U.S. for 18 years or more. U.S. unauthorized immigrant population reached a record 14 million in 2023 (Pew Research Center) (Aug. 21, 2025)
• fact Unauthorized immigrants made up a record 5.6% of the U.S. workforce in 2023, about 9.7 million workers, according to Pew. U.S. unauthorized immigrant population reached a record 14 million in 2023 (Pew Research Center) (Aug. 21, 2025)
• opinion The bipartisan Dignity Act (introduced July 2025 by Reps. María Elvira Salazar, R-Fla., and Veronica Escobar, D-Texas) would, according to its sponsors, create a renewable seven-year legal status funded by restitution and fees, require E-Verify and fund border security, with no path to citizenship. Rep. Salazar introduces bipartisan Dignity Act (sponsor press release) (July 15, 2025)

More legal immigration for growth

Claim: Expand legal immigration, especially for workers, because immigrants grow the economy, fill labor shortages and strengthen public finances over time.

• An aging workforce needs new workers to staff industries from agriculture and construction to health care and technology.
• Budget forecasters project that higher immigration adds to economic output and tax revenue, lowering deficits over a decade.
• The children of immigrants are among the strongest fiscal contributors in the country, paying more in taxes than their parents or other native-born Americans.

Strongest counterargument: Critics say most of the economic gains go to the immigrants themselves and to employers, not to existing workers; that first-generation immigrants cost state and local governments more, mainly for schooling; and that rapid inflows strain housing and public services faster than communities can adjust.

Evidence

• projection CBO projected that the 2021–2026 immigration surge would lower federal deficits by about $0.9 trillion over 2024–2034 and raise nominal GDP by $8.9 trillion over the same period. Effects of the Immigration Surge on the Federal Budget and the Economy (Congressional Budget Office) (July 2024)
• research The National Academies found that first-generation immigrants are more costly to governments, mainly at the state and local level, while the second generation is among the strongest fiscal contributors. New Report Assesses the Economic and Fiscal Consequences of Immigration (National Academies of Sciences, Engineering, and Medicine) (Sept. 2016)
• fact Unauthorized immigrants alone were 5.6% of the U.S. workforce in 2023, a record, according to Pew. U.S. unauthorized immigrant population reached a record 14 million in 2023 (Pew Research Center) (Aug. 21, 2025)

Humanitarian protection and due process

Claim: Focus enforcement on people who threaten public safety, and give everyone, including asylum seekers, a fair hearing before removal.

• U.S. law lets people physically present in the country apply for asylum regardless of how they arrived; fast-track removals risk sending refugees back to danger.
• Detention increasingly holds people with no criminal conviction, which spends enforcement resources on people who pose no threat.
• Research comparing arrest rates finds undocumented immigrants are arrested for crimes less often than native-born citizens, so treating immigration status as a proxy for danger is misguided.

Strongest counterargument: Critics say lengthy hearings and court backlogs let people who do not qualify for asylum remain in the country for years, which itself encourages more unlawful crossings; that living here illegally is a violation of law that should have consequences whether or not someone has committed another crime; and that strict enforcement is what brought border crossings down.

Evidence

• fact Under 8 U.S.C. § 1158(a)(1), a person physically present in the United States or arriving in it may apply for asylum, whether or not they arrived at a designated port of entry and regardless of status. 8 U.S. Code § 1158 — Asylum (Cornell Legal Information Institute) (current law)
• fact As of Nov. 16, 2025, 65,135 people were in immigration detention; 73.6% of them had no criminal conviction, according to TRAC's analysis of government data. Taking Stock: Trump Administration Record on Detention and Removals (TRAC, Syracuse University) (Nov. 24, 2025)
• research Using Texas arrest data from 2012 to 2018, a PNAS study found U.S.-born citizens were over twice as likely as undocumented immigrants to be arrested for violent crimes and over four times as likely for property crimes. Comparing crime rates between undocumented immigrants, legal immigrants, and native-born US citizens in Texas (PNAS; abstract via the National Criminal Justice Reference Service) (2020)