" 
 ::::::::Well now you're just digging the hole deeper. By insisting that ""race"" is non-existent, you are giving yet another reason that the statement of Obama's ""African-American"" attribute is unnecessary and unfair. Second, you are implying that Wikipedia is racist, because it clearly acknowledges the concept of race. Third, race can not possibly be nothing but a ""social construct"" as you would suggest; to make that implication would be to claim that the fact that black families produce black children is a mere co-incidence. Clearly it's not a co-incidence, families of a particular race produce children of that same race because race is genetic. For more evidence of this, though it shouldn't be necessary, different illnesses and conditions affect people of different races in very different ways; there are notable biological differences amongst the races besides pigmentation of the skin, including variation in brain size and bone structure, as well as hundreds of less-obvious differences; and your claim that there are no human races simply because we can inter-breed is as valid as the claim that there are no different breeds of dogs using the same argument."