We know the answer to this and it is very simple.
They don’t care.
A black kid being shot in the back or a Mexican kid getting stabbed out of a Bodega is not their problem, so they aren’t going to speak on it and frankly a lot of white athletes are MAGA, so they agree with Trump.
You have a few like Chris Long who will speak up, but by in large because it doesn’t affect them, they really don’t care.
Flip the page for the video of Oscar Robertson speaking on this issue.