That's cleaning it up for them, and it's probably necessary. They'd be wise to start vigorously policing themselves. The "good" ones will find that process a lot less painful than any of the alternatives. I doubt they have the guts, individually or culturally, to do it.
Oh they’re doing it alright. All across the US. Have been in the major cities for the last 20 years. There, they don’t even bother to police since they’re not allowed to. And if by some chance they do, they’re eviscerated for it if the media runs a story and the “victim” isn’t white. A white, Christian, man specifically. Heaven help you if you’re a white cop.