The craziest thing for me is that there's a lot of evidence for claiming that Sapiens interbred with other Homos, such as the Neanderthal.
Not a great example; the green women are specifically shown to exert pheromonal control over alien males.
Are there any now living people with mt-dna from other hominids?
Having a minority non-autosomal genotype could be an issue as there might be recurring "compatibility problems", given that the autosomal dna would mainly evolve to work with the majority mtdna and ydna.
> There is considerably less Neanderthal ancestry on the X-chromosome compared to the autosomal chromosomes, which similarly suggests that admixture with modern humans was primarily the result of mating between modern human females and Neanderthal males.
https://en.wikipedia.org/wiki/Neanderthal_genetics#Parentage