The thing with American chants they are usually one word like USA or usually one liners such as let’s go.... you deserve it clap clap clap & are pretty family friendly. I’m assuming this is how the crowds behave at your pro sports teams etc.
The thing with football/soccer in the uk it’s very tribal, there can be serious hate between sets of fans & chants funny & nasty are used to intimidate opposing players & support their own. & lot of chant lyrics are chanted to the tune of a particular song.
Some can be very pantomime but use expletive language which if ECW had toured the uk back in the day would have fit right in.
For example if say a heel was giving a smug promo to the fans, the likely hood is they’d receive a chant such as “who the fucking hell are you!!” Basically meaning who do you think you are giving it the big I am, you’re nothing
I do think these chants work when they are done right as I said with the example of a heel giving a promo. I’ve seen a lot saying chanting during in Matches is the crowd trying to hijack shows, that isn’t the case, as in football/soccer chants are sung in encouragement when teams are winning or losing therefore in a uk fans mind you’re invested but you’re either willing who are support to come back through chanting or encouraging her to stay on top.