I used to think so too, but Unions are looking down the road about this. Yes, it hurt their dues paying workers to have illegals around, but they stopped giving a crap about worker wages long ago. Now it's all about union DUES.
The Unions will organize the illegals, dreaming of the days of Julio Chavez. They have visions of MILLIONS of new dues-payers added to their coffers.
GMTA
Ooops, make that Cesar Chavez...