Ramdrake keeps reverting copy edits along with the statement he disagrees with. 
 "However as biological studies through the twentieth found biological basis for the classification it became clear that the primary factor in racial classification was social conventions developed in the colonial period." Is unsourced and makes no sense. 

 "Scholars continue to debate the degrees to which racial categories are biologically warranted[9][26] and socially constructed, as well as the extent to which the realities[27] of race must be acknowledged in order for society to comprehend and address racism adequately." Is repeated twice in the same paragraph. 

 It is not my responsibilty to structure my edits so that you can effortlessly revert what you disagree with. How could I even do that? Ramdrakes behavior is now so rude that it appears calculated to provoke a hostile response. I imagine that this would not be looked upon favorably should it be brought to the intention of administrators. This is a warning to desist before that becomes necessary.  

 Ramdrake asserts that I am "a sockpuppet of a banned user". Can he elaborate on that? 

 There is no source to imply that the concept of race is not often used since the early twentieth century ("In the early twentieth century it was often used as a biological term, race denoting genetically divergent human populations that can be marked by common phenotypic traits"). None of the sources for this examine Eastern Europe, China or Russia, where a near 100% acceptance is found (China recently surpassed the US in number of PhDs). In fact, the concept is alive and well, even in the West. Figures from Lieberman's study are cited, but he was looking at scholars from inappropriate fields, and only members of the AAA. Clearly this is a poor sample for an international overview, and even that showed a 30% acceptance, not supporting an implied demise.