nah, just a byproduct of evolution. every so often, something goes wrong in a human's genetic pattern. in this case, the pigmentation gene switched off. as we use a more diverse genetic pool (what you refer to as race-mixing, you symbol of charm and tolerance, you), genetic whoopsies like this one will disappear as stronger and more effective genes come to the fore. as for there just being one kind of human, well, there is only one kind of human, but with different genetic configurations (hint; you refer to them as races). think about it; when you see a desktop computer, you think of it as a computer. when you see a laptop computer, you still think of it as a computer. am i right in assuming that? it is the exact same thing for humans, since all we are is a biological reproduction machine with souped-up brain power. if what i said about computers is right, you show more intelligence, compassion and tolerance for an inanimate object than for a fellow human being... which would, ultimately, make you an average human (intelligence, charm, looks, etc.)