Yes, the president should close the Mexican border, secure it with troops, and say no one crosses until Mexico can control its citizens and guests. The country openly encourages transit and invasion. We need to stop it. Mexico needs us more than we need them. Maybe reopen with condition they pay for the wall, which helps them fulfill their obligation.
Wait...Mexico sends all those trucks, cars, industrial, consumer and food products by truck through the main border ports of entry
Closing off the border will still leave these open
It's just the rest of the border will be secure.
The president is already set the narrative for this argument. Sex trafficking illegal drugs and MS-13 gang members. Simply put, he has the authority to ban entry from folks from these countries without proper vetting. That would mean anyone trying to bypass the system would be automatically subject to removal