Really? You stand by that bolded claim? Racism is a very human trait - it's a form of prejudice, the fear of the different...and it's present everywhere. This doesn't mean that it's okay or that it shouldn't be fought, but it is everywhere. Your claim, on the other hand, would require that once they put on that uniform, police are somehow no longer subject to human foibles of prejudice in general and racism in particular.
What's more, when there is an organization of like-minded people, they tend to develop a group mindset -
groupthink. Part of my military career was in military law enforcement, and I've seen this in action. That, and having been raised in a place (MS Delta) where almost all whites were at least to some degree racist (and all my family including myself certainly were), you cannot tell me that when a group of whites are in law enforcement Down South, that there is not racial prejudice by some therein, at least to some degree. To claim otherwise evinces a vast ignorance of the human animal.
And you say I made the claim without evidence, so
here's evidence. Yeah, since it's from HuffPost, you'll probably want to dismiss it right away because of who said it...but instead, look at what is said - every bit of it can be verified from the sources listed.
Now, I ALREADY said that I would ignore the quite-extant race issue if that's what it took to get the police to accept the reforms you proposed. I ALREADY met you halfway. Please do me the courtesy of meeting me halfway by not pretending that there's no racism among the human beings working in law enforcement.