GMTA!
Increase their foreign aid package in exchange for taking the unlawful aliens back.
It would be cheaper in the long run!
My other idea is just to set up offices at the border where illegals pay $100 (or whatever) for a Temporary Citizen Card so they can work and start paying taxes immediately. Anyone without it is sent back...no questions asked because there would be no excuse for NOT having a US ID. New Temp Citizens would then be responsible for becoming Full Citizens within 3 years.....none of this inbetween stuff. It would also greatly cut down on the human trafficking. As for the illegals already here.....they would still need to sign up for the Temp Citizen Card and start from the beginning since nothing was done until that point.
Both ideas sound far-fetched however, I think we are reduced to extremes at this point.....