Higher Illegal Immigrant Estimates Undermine Case for Mass Deportation

The debate over illegal immigration has intensified with claims that the number of undocumented immigrants in the United States could be as high as 25 million, according to assertions made by former President Donald Trump. However, a recent analysis by David Bier, an expert at the Cato Institute, challenges this narrative and argues that larger estimates actually weaken arguments for mass deportation.

Bier’s research highlights significant financial implications of deporting such large numbers of individuals. The Department of Homeland Security has estimated that the average cost to deport one person is approximately $18,245. This means that if Trump's figure of 25 million illegal immigrants were accurate, the total cost for mass deportation would skyrocket to around $456 billion.

Moreover, Bier points out that illegal immigrants contribute economically through various taxes they pay. They often pay sales tax and sometimes even Social Security and income taxes. The Congressional Budget Office has estimated that recent arrivals of illegal immigrants could cut deficits by nearly $1 trillion over a decade. In 2025 alone, Trump's immigration crackdown was found to have erased approximately $500 billion in potential savings.

The economic benefits provided by illegal immigrants extend beyond tax contributions. They also help fund government budgets through their participation in the labor market and consumption of goods and services. Bier notes that deporting a large number of these individuals would significantly increase the fiscal burden on American citizens and legal residents, as they would need to cover the costs previously borne by the undocumented population.

In addition to economic considerations, there are substantial social implications to consider. Illegal immigrants receive very few taxpayer benefits due to their ineligibility for major federal public benefit programs and many state-level assistance schemes. This means that while they contribute financially, they do not significantly strain government resources through benefit claims. Consequently, a larger undocumented population suggests lower costs per individual compared to initial estimates.

Perhaps most importantly, the economic output of illegal immigrants is crucial to the U.S. economy. The Peterson Institute for International Economics has estimated that deporting just 8.3 million individuals would reduce U.S. GDP by about $2.5 trillion by 2028, representing a significant decrease in overall production and services available to Americans.

Furthermore, higher estimates of illegal immigrant populations also imply lower crime rates among these groups compared to native-born Americans. Studies have already shown that undocumented immigrants are incarcerated at much lower rates than their U.S.-born counterparts. If the population were larger, it would suggest an even more favorable criminal profile for this group, further undermining arguments based on public safety concerns.

In conclusion, while proponents of mass deportation argue that higher estimates strengthen their case, Bier’s analysis reveals that such figures actually highlight the impracticality and potential harm of large-scale deportations. The financial burden, economic impact, and social contributions all suggest that a more nuanced approach to immigration policy is necessary rather than blanket enforcement measures.