Misapplying a wikipedia link brings zero support to the parent comment. It possibly demonstrates that you have no truthful, factual, or logically sound arguments against the facts/science that have been stated thus can only resort to demonization .. Aka trying to thinly imply what has been presented is scientific racism.
I'm African American and I'd hire this guy in a minute. Why? because I can be assured that he is capable of sound root cause analysis and wont hold back his tongue w.r.t to presenting his findings... Even if the document was 100% about the inadequacies of African Americans, Id still give him the opportunity to debate and highlight his supporting data/arguments. This is not grounds to be fired. This is grounds for a promotion.
This is invaluable in engineering... The fact that company's in the valley have grown so high and mighty that they feel that such people are dispensable is a clear sign to me that the current tech giants have no place in the future of technology that is set to unfold... As such, the problem quite clearly will resolve itself.
Good luck discovering and developing the future of technology when you can't stomach viewpoints beyond the least common denominator social consensus.... I'm so glad I ignored google's attempts to recruit me as a quota hire... which is a whole other discussion on its own (hiring minorities for market/social currency and to pad your statistics while throwing them into b.s roles that don't allow them to develop further). I went through enough of that crap in my internships. Ironically,many times I was overqualified yet constantly was looked at and treated like the dumb minority who is there to fill a seat.
The problem and wrong minded culture that select people have embarked and forced on society is clearly going to fix (sink) itself.