The propagators of that theory had racial biases which were more than likely the main reason why they were looking into shyt in the first place. The way I see it they were looking for a reason to say it goes monkeys/apes, then n***ers, then us, and all the n***ers belong over there contained in this one continent in the world while whites and other "more evolved" races get dominion over everywhere else, unless of course they want slaves or some shyt.
It doesn't matter the juelzing that came after, this whole whites developing later with neanderthal bullshyt is designed to place them above us. Same with the Denisovans or whatever fake ass shyt they come up with.
This is Darwin's OG title for the natural selection shyt. His cousin was a eugenist and so was he, but I suppose he understood that through books and the stroke of pens the genocide of darker races and the preservation of cacs was much easier than through force.
It's also fukking stupid