It's a common left wing talking point too: we need to import more Mexicans because "they do jobs that Americans just won't do". See the comment just above mine, for instance. This talking point is correct and I can back it up with Census and BLS stats if you like.
Admittedly, it's only right wingers who bring that talking point up when discussing welfare.
Admittedly, it's only right wingers who bring that talking point up when discussing welfare.