It is ironic that the same people that accept that, in general, whites don’t jump (or sprint) as well as blacks will not accept that blacks, in general, may not think as well as whites.
(Those are generalizations and it doesn’t mean that there aren’t some whites who can jump very well and some blacks who think very well)
For the last fifty years or more, every time somebody mentioned black superiority in certain sports that emphasized speed and leaping ability, the self-appointed “experts” would bring up the exceptions thereby “proving” that there were no differences. I think the average person knew there were differences. Now it’s accepted by even many blacks from articles I’ve read. Why pretend? If fifty years of every American Olympic sprinter, of both sexes, being black isn’t overwhelming proof, I don’t know what is.