Here is some more evidence on the harm illegal immigration has on a large portion of Black Americans.
"Among its findings, the Commission notes that the illegal workers are estimated to account for as much as one-third of total immigrants in the United States, and that illegal immigration has tended to increase the supply of low-skilled, low-wage labor available. The Commission found also that about six in 10 adult black males have a high school diploma or less, and are disproportionately employed in the low-skilled labor market in likely competition with immigrants. Evidence for negative effects of such competition ranged from modest to significant, according to the experts who testified, but even those experts who viewed the effects as modest overall found significant effects in occupations such as meatpacking and construction."
"Among its findings, the Commission notes that the illegal workers are estimated to account for as much as one-third of total immigrants in the United States, and that illegal immigration has tended to increase the supply of low-skilled, low-wage labor available. The Commission found also that about six in 10 adult black males have a high school diploma or less, and are disproportionately employed in the low-skilled labor market in likely competition with immigrants. Evidence for negative effects of such competition ranged from modest to significant, according to the experts who testified, but even those experts who viewed the effects as modest overall found significant effects in occupations such as meatpacking and construction."
The Impact of Illegal Immigration on the Wages and Employment Opportunities of Black Workers
A Briefing Before The United States Commission on Civil Rights Held in Washington, DC
April 4, 2008