Somali referee Artan barred from entering US
bbc.co.ukF365 covering it as well [1]. They're a lttle more blunt - basically "American immigration is racist as fuck".
1: https://www.football365.com/news/nobody-surprised-as-us-deny...
They certainly pull no punches.
If this is happening to award winning match officials, it doesn't bode well for the ordinary fans.
Obviously, as you assume, for ordinary fans it has already been much worse:
https://www.bbc.com/news/articles/cx212p8r28eo
Organizing any international events in USA is a huge, unforgivable mistake, when it is well known that already for a long time USA has been a country hostile to foreign visitors.