"Your premise is that because white people and black people can reproduce, then it is right to do so."

-My premise is, That because "white" and "black" people can reproduce, and have for ages without a history of abnormalities, that nature isn't fighting it, but perhaps encouraging it. The fact that the two are attracted to each other is a natural process, encouraged by nature, as nature has a way of causing us to reproduce. So, is your premise that it's wrong for them to reproduce?

"I tried to give you an example of different "species" who can reproduce. The concept of "species" is vague however. What is considered another species, are many times just a subspecies. Like the domesticated dog is a subspecies of the wolf."

- I'm ready to say that those examples are very rare occurrences, and/or are the results of human intervention.

"Do you think that homo sapiens and neanderthals have interbred and produced viable offspring that wasnt infertile?"

-I have no idea, I wasn't on the planet at that time. Neither were you, or any of the other posters here, or any members of the M.S.T. Having read about that theory, I can say that it is highly refuted, and whether we choose to accept it or not, is, at this point, based on our personal biases. Moreover, if this was the case then I would say that nature really didn't do much to contend with it.

"According to scientists, there were overlaps in their existence. If they did interbreed, what happened to the hybrid offspring?"

-I have no idea, did they interbreed? like I said, I wasn't on the planet at that time, however, again, if they did interbreed could we say that nature was not responsible for creating a natural attraction between the two?

"White eugenicists have been labeling Black people as subspecies of homo sapiens for centuries.

Could it possibly be the other way of around?"

-Like homo sapiens are a sub species of Black people? Then what are the Basques?...btw I'm smirking

"Wouldnt a subspecies have less dominant genes?"

-Sure, but make your point. If you're implying that white people are a subspecies of black people, that's fine. I'm not trying to establish the hierarchy of species, if it makes you feel good to do so then have at it. I will say that when the two do reproduce it is obvious who has the dominant genes, and perhaps that is nature's way of getting back to the original, this could be another argument for why nature has created the attraction between the two in the first place.

Selam