UK has a thing with football teams: I walked the wrong way once in Sheffield as a football stadium emptied and one group violently ambushed another while I was in the middle of them both. While a police helicopter was overhead.
Back two generations and switching denomination of Christianity was scandalous for some of my relatives.
My Welsh university got me some local stereotype jokes at my expense, ac mae yna bobl o Saeson sy'n amheus iawn o bobl o Gymru yn siarad Cymraeg.
They were threatening my grandparents, for being French catholic. They got local governments to force French speaking communities to stop speaking french. My mother learned french as her first language. I did not. I am not fluent.
It's always here, but it always somehow gets turned into a national thing. It shouldn't be hard for americans to understand, but lots of people keep leaving "And it was your supposedly upstanding in society neighbor who put on the hood and claimed you were poisoning the pure blood of the local trailer park" out of the history book.