It worked fine in the mid 19th-century, so maybe it's time we tried it again:

Annex Mexico.


Without a border, the illegals automatically disappear. Every Mexican becomes a US citizen; and every American is free to travel in, live in, and work in Mexico for as long as they want.

More land and natural resources means a bigger tax base, and even the shoddy labor policies of the US government will help the former Mexicans make a better living wherever they live. Everyone will be happy, except for a handful of corrupt Mexican politicians.

Remember, kids, you heard it here first.