Your premise doesn't hold up very well. For example, in a given year over 50% more white people are shot and killed by police than eg black people. There's a sizable population difference, which points to the obvious imbalance of abuse by police toward black people, however that's still an immense number of white people getting shot. It would be considered insane in almost any other country. You're underestimating the awareness of the problem by white people, they've noticed the substantial amount of abuse & police militarization going on (which is why so many white people now support doing something about it, from ending the war on drugs to body cameras etc, the majority of white people support these changes).

I think this is an entirely valid point, and I'm disappointed to see it immediately downvoted to oblivion.

If we're serious about ending police abuse of power, we have to make sure they're not abusing anybody. Otherwise people inclined to abuse authority have a training ground where level up their abuse skills.

I don't think this is evidence of that at all. I think the general public has noticed abuses of minorities over the past several years and is appropriately outraged.

The primary change I can see is the ubiquity of cameras. Their emergence and widespread popularity after the turn of the century has brought accountability to the most corrupt and dishonest among the police force. Everyone seems to be outraged at the abuses, whether the victim is minority or not. Unfortunately I think that minorities have suffered much more significantly under the boot of these corrupt authority figures.