Because a disproportionate percentage of immigrants have few skills, it is low-skilled American workers, including many blacks and Hispanics, who have suffered most from this wage dip. The monetary loss is sizable ... According to census data, immigrants admitted in the past two decades lacking a high school diploma have increased the size of the low-skilled workforce by roughly 25 percent. As a result, the earnings of this particularly vulnerable group dropped by between $800 and $1,500 each year.
A 2016 study conducted by the University of Pennsylvania found that an increase in the labor supply resulting from immigration could actually generate more employment in industries such as home construction and food production. Simply put, more demand for goods and services means greater demand for those providing those goods and services. While a handful of less-than-credible studies suggest that undocumented immigrants take jobs from U.S.-born black people and Latinos, existing data simply doesn’t bear out a correlation between undocumented immigration and unemployment rates among U.S.-born racial and ethnic minorities.