Anyone that has traveled outside of the US for any extended period of time understands that race relations in the US are as good as if not better than most other nations.
Brazil - Lived there for 6 months while working and numerous trips back and forth before and after that time period. Horrible race relations... and the economic divide is stunning.... people living in villas and on the next hill over, Favellas.. slums literally built out of pallets and tarps.
China - Oh they hate blacks... they view them as entertaining but ultimately don't want them in their nation. Not enough of them there for the locals to care.. but they definitely see ethnic differences between the Han and other Chinese ethnic groups. It's a little papered over because EVERYONE fears the state.
Italy - The guys like black women but that's about where it stops.
Germany - they avoid any racial discussions because of that little incident with the Jews back in the 30s/40s.
France - Again... total hate on Blacks and they view their former N. African holdings as a mistake. Portions of their country are no-go zones even for the police. Ask a Frenchman over lunch about race relations and you will empty a bottle or two before you're done
Most other nations I've spent extended periods of time in aren't diverse enough for people to even care... Syria, Jordan, Egypt, Eastern Europe.
The only nation I've been in that comes close to the US in respect for minority rights is Canada... But that's because they were part of the Anglosphere and generally aren't much different between the UK, AUS, and the US.
As for LGBTQ#!@#$%^&*() etc, Most nations outside of Christian traditions don't have a ton of tolerance (I'm thinking mostly Muslim nations as that's where I've been). Don't know how Hindus regard them. Same for the Chinese.. never saw any evidence in China that gays even exist.