I’ve long contended that the Brits are far more racist than we are in the US. All you have to do is go there as non-white christian and you’ll find out.
I went to undergrad in Harlem, and I met many black students from various common wealth nations that lived in both the US and the UK. All will tell you the UK has a bigger race problem than they are aware of, and the US is a far better place to be black.