I don’t see your comment as addressing the same thing at all.
The land of the free was never really a thing. If you are even considering that as part of the discussion, I think you’re being naive. America (us and Canada) just has a lot of resources in the sense that it was guaranteed to be a world power for geographic reasons. (“Guns, germs, and steel” is an interesting, but accessible, but also dated, discussion of that)
Any trivial understanding of US, European, or world history will show you the same. Getting people to interact well with out groups is extremely hard. especially in the event of diaspora.
My ancestors, like most of everyone poor brought to the new world, were transported here as human garbage. They weren’t taken as chattel slaves, but a share cropper or indentured servant is still not something to be admired either.
We’re talking about addressing racial issues. My ancestors were “non white” whites. They disappeared because they didn’t have an observable difference. We’re now addressing the observable ones.