Garbage. There are plenty of great NBA players who keep their politics to themselves. Remember, most truly wealthy people (and this is true of most of the NBA, MLB and NFL players - check the league minimum salaries), LIKE keeping more of their money and more than a few become closet conservatives but they know it is not in their best interests to come out as conservatives so they keep their mouths shut.
Remember when that SF cornerback said he didn’t want any gays in his locker room and the media hounded him for weeks? That’s what happens if you don’t spout the liberal line but, behind closed doors, their cheering Trump and the GOP. Those folks are helping them keep their money.
True, in a sense.
I think a lot of black athletes are Republican, but they can’t speak out.