Human Biodiversity is the idea that there are average differences in traits between different races. Most controversially, intelligence (proxied by IQ) is one trait that is speculated to differ based on race. And this, rather than discrimination, accounts for differences in outcome within society.

The evidence I have seen suggests it is probably true. Mostly because there is no reason to assume that intelligence is equal when the brains have different structures. And egalitarianism was never logically shown.

It is what one could consider a red pill opinion: utterly debunking egalitarian ideals but I see some hostility to it in the manosphere.