[foldr]

It depends a lot on which part of the US you look at. Here’s a high school having its first ‘integrated’ (i.e. not racially segregated) prom a mere 11 years ago: https://youtu.be/fDla-r2uj7U?si=Zun-NdDnjnSq0Yk4 The idea of formally separating an event like this by race would have been shocking 11 years ago in many Western countries. The US is ahead of the curve in some ways regarding racism, but it still has incredibly high levels of de facto racial segregation. As a Brit who lived in the US for a while, this was the aspect of US life that surprised me the most. Many white Americans still quite openly regard majority black towns or city districts as no-go areas (even though they don’t openly talk about it in racial terms). You see segregation on a smaller scale too (e.g. the common pattern of the restaurant with all white serving staff and all Latino kitchen workers). I’m aware that this kind of segregation isn’t usually the result of a deliberate evil plot to segregate people, but it’s still notable.

I am not saying that the UK is necessarily ‘less racist’ overall than the US. I think racism manifests itself quite differently in the two countries, so it’s hard to compare.