Breh, I think White folk can play. I have hooped with a few of em, and they can hoop. Athleticism is their problem, or rather, we are TOO athletic for them.
I think it was the 60s when NBA basketball became a fast game, where the play started to get close to or above the rim, due to Black folk entering the league. But there were quotas that limited Black players to a few players a team.
Back in the 70s and 80s, White folk were still the slight majority in the league. Brehs weren't really into hooping like that, as a career path. We was too tied up in civil justice and then the crack epidemic that hit our communities hard in the 80s.
But then Jordan came, and Gatorade had an entire campaign slogan around wanting to BE LIKE MIKE. So naturally, our youths wanted to play, and the rest is history.