Even if that is the case, even people who aren't conversant with genetics seem to think he is more black than white.
This looks like a job for
Bamp Bamp BAAAAAAA! Mixed Race Man!!!!!
Ok,first off, this is going to seem like the "Chewbacca Defense" Because it really does make little if any sense but like someone mentioned before it's the reality of race in America. Quite often, it goes way back to the "one drop rule" meaning that if you have one drop of "Black blood" you are in fact Black. (Note: I can't recall if anyplace, anywhere officially used this rule but it was used socially.) Now depending upon to whom you were dealing with, this was either a sign of one being tainted or welcomed.
That's me in my avatar (The one with the hair on his chinny chin chin) and I'm considered "Black" also "mixed" today. Years ago when I started grade school I was also considered "passing" (as in "He could pass for White").
Now as far back as I can remember I've always known that I was adopted and of mixed race (Black, White, American Indian) My mother (who is also light skinned enough to be considered "passing") had to lie and say she was White and get her uncle to pretend he was her father so the could adopt me because the agency felt only mixed race couples should adopt mixed race children. Once the process had been completed the only people who mentioned my being mixed were my parents, everyone else saw me as Black.
All in all it's simply a silly perception that people have to grow out of.
(I had written a lot more but there are so many nuances to this thing that it would take up several pages.)
ETA: As for the OP... Yep. Anytime sensible questions are drowned out by hysterics (now and for the past 8 years) I don't know what else to call it.