Mexico let them into their country. They are Mexico's problem.
Obviously, we need new border and immigration laws.
It may be time that we adopt border law that allows military, local police and border agents to shoot on sight anyone who is illegally crossing our border.
Rudyard Kipling told us all about it, a century ago.
Maybe a counter offer, billing them for the amount the U.S. government has had to spend because of their antics.
A bill of about $100,000 each should do it. Payable upon them setting foot in the United States...