I would not say that the system disproportionately affects non-white Americans. I would also not say that the system is biased, there's not a law, a rule, nothing, creating a bias in the system.

I would also say that bias of the individual is not on a scale to have a statistically significant bias happening within the police.

non-white Americans commit more violent crimes, that's a fact. I would not blame the police for that fact. There's something cultural going on there and I would not even say that is a product of racist culture. IMO, USA is the least racist it has ever been.