1) He is poorly named.
2) Given how 70% of NBA players are black and also that black people therefore make up a disproportionately huge part of a team's fan base that buys tickets and merchandise, I suspect that even Cliven Bundy would think Donald Sterling's words were insane.
I reserve the right that maybe at some future time I'll comment more, but --- honestly, is all that much needed here? It's certainly not only proper, but important for the media which covers basketball to deal with the issue extensively, from a personal, societal and business perspective. It's proper for anyone to comment to their heart's content. It's just that, for most people, what can one express after whatever your initial disbelieving thought is that isn't obvious? "Fill in the blank" seems to fit well.
At the Clippers' game on Sunday in San Francisco, signs such as the following were seen -