Negroes (dark-skinned people originating from sub-Saharan Africa) are much more likely to be Untermensch, due to both genetic and societal factors. These Negroid Untermensch are what we informally call 'Niggers'. Personally, I don't consider Untermensch-- those that kill, steal, and use recreational drugs-- to be human; they may be likened to a dolphin, elephant, or chimpanzee and they may be treated like one. So in my opinion, they are not human.