Now that they're older, they're sparring once again, just like siblings do over the parents' estate.
The whole neighbourhood thinks you're assholes and bullies, we're all scared. But that is bring us closer together as result, so there's some upside.
Racism? Oh man, visit any other country that is more homogenous.... lol. Everything is relative.
Canadian and American racism is documented in specific events, unlike in other countries. I'd be hard pressed to find specific racism-driven events in Poland or Czechia, even though they top the racist charts.
I'm not American so your second point is completely moot.