I wanted to add that even though I believe that there's probably still a lot of the discrimination against our own people in some places of Europe that you mentioned, I have to say that I rarely experience this.

Like the example you gave for the UK, even though I have never lived there for a long period, I've been there many times and I've never seen anyone mentioning the societal class. Maybe from movies or games that play in the past they say "Look at this poor peasant" but I've never experienced this IRL.

I don't wanna hate on America at all (I think it's an awesome country in many ways), I think this is just important constructive criticism because I've experienced so many times that Americans called people black or white and made a stereotyping/discriminating thing out of it, said the N word etc.

And especially for purely appearance based reasons I think it's particularly bad because no one can change their body or skin color since that's how they were born.

But of course we need to get rid of all discrimination including the ones against foreigners that Europe also definitely has!