Also, don’t allow monies accrued in the U.S. to be sent to Mexico via banks.
I forget the number - but something like $30 Billion goes to Mexico every year. Most from the USA. I’m guessing most of that never had taxes taken out. Heck - the earners are probably claiming overty and getting free food and healthcare.
The money sent to Mexico from outside workers is Mexico’s largest source of GDP! More than oil.