Interestingly, Newt G. was on Rush a few months ago, outlining just what you've described: how to deal with multi-millions of illegals already here, etc..
Hmm, well, I do admire most of what Newt G. reasons. I'm not familiar with, however, what he's proposed/proposing as to solution here, however. I hope it's not the "deporting them is unrealistic" opinion!