If FIFA weren't so incredibly corrupt, by now they'd at least be talking about moving some of the US matches to Mexico and Canada. They have to know that there's a good chance some of the athletes or coaches will be denied entry, or allowed in then thrown in a concentration camp.
This just happened with Ethiopian Runners, who were denied entry. Only 4 of the 18 were allowed in. Meanwhile Eritrea can't send anybody because Trump put a travel ban on their country.
There are plenty of other suitable stadia in Canada and especially Mexico that could accommodate the games, and those countries aren't going to be denying entry to any athletes or coaches.