Right? Apparently people are aware of what happens when the USMT plays a game in Mexico. Hell, I went to a USA v Mexico “friendly” at the Rose Bowl after 9/11 and the Mexico fans were chanting “Osama, Osama!”
The U.S. is Mexico’s bitter soccer rival, it’s like asking Eagles fans to cheer a Cowboys flag. Cheering for the Canadian flag, is different, it’s like how you never boo at the Special Olympics.