Since 1970, immigration has increased the number of unskilled job applicants faster than the number of skilled job applicants

Almost every job that immigrants do in Los Angeles or New York is done by natives in Detroit and Philadelphia. When natives turn down such jobs in New York or Los Angeles, the reason is that by local standards the wages are abysmal. Far from proving that immigrants have no impact on natives, the fact that American-born workers sometimes reject jobs that immigrants accept reinforces the claim that immigration has depressed wages for unskilled work.