It's people stuck in another century. Dreaming of things that never really were, like an America that was great.
Either way, whatever is was, it's long gone.
White people had little qualms about ruthlessly dominating parts of the world, and the people that live(d) there.
Ofcourse these types of white people who are pro such things, are now afraid that all sorts of non-whites (who are a majority all of em together) will do the same thing; Take over.
And then it's goodbye precious white race. Because that's all non-whites of the world have been thirsting for for centuries and millennia; killing another race.
I hate that this s/ is needed.