Oh?
They can't even control THEIR southern border?
Them Hondurans and Guatamala folks ain't walking for weeks thru Mexico with no help from Mexico!
No, they can’t. But from talking to my Honduran friend (who is, uh, staying in Honduras and not trying to illegally emigrate), Mexico’s southern border is porous, but they are apprehending and returning dozens to hundreds of Hondurans per day, and when found in the interior, they get deported - and that’s all the way back to Honduras, not just getting kicked across the border. Mexico has decided they don’t want to put up with the rest of Latin America coming to their country and camping out either - but this is only in parts of the country still controlled by the government. The parts run by the cartels? No, that’s where the illegals are getting through - after being robbed, raped, or after buying safe passage from the cartel, if they have the money.