https://www.theguardian.com/commentisfree/2022/may/15/buffalo-shooting-white-replacement-theory-inspires-mass
So the thing that some of the people here keep talking about has a name: white replacement theory. I don't watch Tucker Carlson so I was unaware.
The origin of the phrase is from the French book Le Grand Remplacement (means the same thing) by Thomas Piketty. The thing is, Piketty is an economist. The book is basically a simple calculation showing that the base cultures of Europe are doomed based on simple math. I don't see any fault, and people rarely attack, his actual argument, instead they are mostly angry that he pointed it out. I'm optimist in me hopes he will be wrong and his theory will be something like the demographic equivalent of peak oil or "The population bomb". But the realist in me thinks he is right.
Piketty is hardly a right wing idealist. In "Capital in the 21st century" he analyzes increasing income inequality, does similar calculations and projections, and predicts we are on a road to extreme income inequality that will cause instability in the west. He proposes one possible solution is a global wealth tax. That's not really right wing material. I don't think Piketty is an idealist, he's just an economist who looks at the numbers. What he finds is just what he finds, but naturally shining lights around in dark places is never popular. If you find something that makes the globalists uncomfortable, you are just a right wing extremist by default. This happens in France too. The latest populist presidential challenger was labeled "extreme right" at every breath, without any honest analysis of whether the label applies, but simply because if you say anything against the EU or against immigration, you are labeled extreme right by default. Tyranny is the deliberate removal of nuance.
As far as the theory itself, i think its application to the US is bogus. The US doesn't have the same population bomb issues as Europe. Our population bombs already exploded long ago. Our problems are much more related to cultural warfare along urban-rural and statist-private axes. Old-school racism or ideas about the blacks gonna outbreed us are a distraction. And I don't know any people who really think that way. Maybe that's because I don't hang around 4chan, but when I hear that kind of old school kkk style racial rhetoric it just strikes me as fake.