Some studies of human DNA among different ethnicities and regions of the world have suggested that most of the world's population has a small amount of Neanderthal DNA mixed in with their original human DNA, with the exception of some African ethnicities, who lack this Neanderthal DNA. While I have not corroborated the veracity of these studies, I have little doubt that they are likely correct, or at least on the ballpark.
(The reason for this separation is that Neanderthals did not evolve in Africa, and only mixed to a small extent with humans when some groups of those humans emigrated from Africa to other parts of the world, starting with Europe. Most of these groups of people never migrated back to Africa, and thus some African human populations never got that DNA.)
Unsurprisingly, black supremacists, who are way too happy and eager to jump to the opportunity to flip the script, essentially "appropriating" the white supremacist script and turn it on its head, have jumped to this opportunity as well to claim that black people are more "pure" while non-black people (primarily white people, obviously) are "tainted" and "impure". That black people are the "true humans", because they don't have any Neanderthal DNA mixed in, and non-white people are lesser.
In other words, they are all too happy to use all the racist white supremacist rhetoric, but flipping it to racist black supremacy instead.
(Never mind that the studies have found that only some black people lack Neanderthal DNA, not all of them. Obviously they don't care. Or even if they do, they probably consider also those particular black people "tainted" and "impure" and thus lesser.)
The irony here is that the narrative could actually be easily and very reasonably reversed.
In other words, while they talk as if having Neanderthal DNA is some kind of drawback and defect that makes those humans "lesser", more "impure", less "perfect", it could actually be the exact opposite.
Basic biology shows that genetic diversity is a good thing, while genetic uniformity is very bad. Genetic uniformity, lack of diversity in the genetic material, not only leads to birth defects being more likely, but moreover it leads to degradation of the species overall. Physical capabilities lessen, mental capabilities lessen.
That's the main problem with inbreeding: It deteriorates genetic diversity and thus causes more and more individuals in that lineage to have developmental defects (both physical and mental) to one degree or another.
So, quite ironically, it may well be that the Neanderthal DNA actually gave the lineages that got it a boost in genetic diversity, thus improving them as a species, while the lineages that did not get the Neanderthal DNA have poorer genetics, with less genetic diversity, and thus suffering more from the negative effects if inbreeding.
So, quite ironically, it may well be that it's actually those black people without the Neanderthal DNA who are the more genetically degraded and, at some scale, more "inbred" and thus with more congenital problems and defects.
I DO NOT KNOW if this is indeed the case, nor do I really care all that much, but I don't find it completely impossible or even implausible either. It would just be too ironic if this was indeed the case.
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