Lots of snarky comments in this thread.
But NO ONE here has put forth a believable or workable plan to deport 20-40 million.
The Mexicans? (must be 10-20 million of them here):
That's easy -- finish the border barrier (with a bunch of one-way gates), then ship 'em to the border by bus or railcar, then march them at gunpoint "to the gates" and tell them to go on through, and they're "home free".
But what are you going to do about the South Americans, Africans, etc.?
There aren't enough planes. That's obvious.
What I'd suggest are converting older oil tankers into giant prison transports, one of these could easily be fitted to hold 10-15,000. Pack 'em in, float them home, then transfer them into D-day style landing craft and drop 'em off on the beaches. Have these operations backed up by the military just in case the "country of repatriation" tries to resist. Off you go onto the sand with guns to your backs, boys.
I wouldn't be surprised to see many illegal Asians (particularly Chinese)
repatriate themselves once confronted with the reality of forced repatriation.
Once again, I present this image. Some of you will know where it's from.
But even if you don't, it's what must be done if you really want the illegals to be ... "removed":
