Here's my proposal:
(1) U.S. gives $50 billion to Mexico and purchases Baja California, along with the land 10 miles south of the existing border with AZ, NM, and TX
(2) All illegals, DACA, guest-workers, illegals in jails and prisons, and anchor babies move to Baja California and create their own nation (Azteca!)
How about this instead: we build the wall, as he was elected to do, and any aliens here illegally caught north of the wall after a certain date are stood up against it and shot.