"illegals are detrimental to poor Americans (which means disproportionately black Americans)"
evidence?
a couple years ago, there was a paucity of illegal immigrant farm workers in Georgia, farmers were hurting, advertised in ATL, etc. effectively didn't get enough Americans, any color, to ease their hurt.
Farm work is hard, hazardous (chemicals), and employers underpay hours, steal wages, rape the workers, or let supervisor rape them. There's a reason Repugs have NEVER approved an immigration plan, eg, the rural employers need illegal immigrants. Trash/Sessions/DHS must be pissing off rural farm owners