I agree with all of that, except for perhaps the insinuation that police are overly biased and that the bias they have is a real issue.
A model police officer is exactly like a model soldier, they are functionally a PUPPET of the chain of command.
The person who follows orders to the best of their ability is NEVER RESPONSIBLE FOR THEIR INDIVIDUAL ACTIONS.
An individual is only responsible for their individual actions if they "go off script" or "act in bad faith" or "start thinking for themselves" (in other words, "break the chain of command").
BREAKING THE CHAIN OF COMMAND IS THE ONLY POSSIBLE CRIME.