Yea, that was the “Romney plan”...of course he wasn’t serious, but it would work. Take away the goodies, they’ll go home. Mexico’s economy has been doing well, lots of jobs down there, and many will go home with some very marketable skills.
Well Ike’s plan was serious about enforcing the law, and when implemented, many decided it was better to go themselves rather than be dumped off a ship far away from where they might want to be or worse.