Not to put too fine a point on it but cops are by and large drawn from the one remaining demographic group still backing very poorly chosen one. White men without a college degree.
Some will be fine people. Some not so fine. But we know on average about the views of that demographic group (sorry about the profiling for you snowflakes out there). People who think "Kung Flu" is an applause line are going to be out there in their racial views generally.