Off topic but Celtic FC have just signed a Jewish Israeli player. That will pose a dilemma for their "green brigade" ultras who regularly stage pitch invasions whenever a Jewish Israeli plays.
This will seem alien to any sensible English football fan who only has to cope with common racism, but Glasgow is a religiously sectarian city. Don't go there without a bodyguard and a translator. Celtic fans wave Irish flags, Rangers fans wave English flags, and nary a Saltire is seen. Which was bad enough, but it's the way it's always been.
A couple of decades ago the Celtic fans started flying Palestine flags, so the Rangers fans started flying Israel flags. I was pals with a Palestinian refugee in Glasgow who was utterly appalled by this. "I fled for my life to avoid this shit, and now you are dragging me back into it? Nobody asked me, don't involve me in this idiocy."
Which leads to the old joke. "What religion are ye?" "I'm a Jew." "But are ye a Catholic Jew or a Protestant Jew?"
On the upside we don't have your type of racism here. I worked with an orange bigot when Rangers signed their first black player and I asked him if he had a problem with that. "Not at all. I don't care what colour you are as long as you aren't green."