If illegal immigrants don't get deported, then what exactly stops anyone from coming here? And how is that not amnesty? We'd essentially be saying that you broke the law, but we'll let you get away with it.
Okay, how do you deport millions of illegals? Spell it out for me. I can't wait to hear this one. Address the financial implications, and tell me what should be done with Dreamers.
The point is that just because we cannot practically deport every illegal, that does not mean that we are inviting more in. In fact, border crossings are WAY down from a decade ago.