The nations that are 99% or more white seem to do very very well
Pretty darned correct.
We’ve been dragging this black anchor and that is what drags into a very slow speed.
Black slaves never adapt, at least the
White, Chinese and Japanese slaves did.
They aren’t 99% “white” anymore.
Or never have been.
Belgium certainly isn’t, its had more than its fair share of Muslims of all kinds, plus Africans.
And Sweden is in the same boat.
Costa Rica is “Hispanic” if you like. And as a Hispanic nation, its certainly not the “whitest”, by far.
Israel has always had a very high proportion of Mizrahi (Middle Eastern/North African) Jews, probably a majority of its Jewish population these days, plus @ 20% Arabs.
Etc.