I think we can cut the Poles/Ukrainians etc. a tiny bit of slack. They’re societies in transformation, lurching from communism to capitalism in a very short space of time, so I don’t think we can expect that their societal norms are going to coincide with ours just yet. And they’re places that haven’t experienced high levels of immigration of non-whites as long ago as other places, so there’s a cultural ignorance in the mix too.
We’ve come so far in twenty five years (Anfield, late eighties, racist Everton fans throwing bananas at John Barnes. Same era, institutional racism in the police force.) so let’s hope they get that far, that fast. Hopefully we’re way beyond Nazi salutes in football stadia, but I know a lot of people who think nothing of using the words “**** shop” and “darky” and see nothing untoward in it. Granted, I’m not in Islington, but we too are still a long way from where we need to be.