Their president is pulling the same crap the Chinese Communist trade delegation pulled, in essence.
The solution is not an emergency meeting, but rather immediate removal of the illegal immigrants from the Mexican side of the boarder to 100 miles South, with caravans moving them all back to their Mexician entry point for expulsion.
As for the Mexican illegal immigration proble, halt it and stop it now in the same manner.
. Most aren’t illegal while in Mexico. Mexico issues short term visas then gets them to its northern border to sneak across or request asylum. It’s a system that must work for Mexico though maybe for cartels.