If you think the racism that the author of this WP article described is exclusive to the police department, you're living in a fantasy. A liberal bubble where you cannot see the forest from the trees. Racism is everywhere and it crosses all ethnicity. Not everyone is a racist, but the very laws protecting minorities also protects racists. Freedom of speech, of religion, prohibitions on discrimination based on color, creed, or religious affiliation protects liberals and racists alike. Our society is woven of these disparate elemental threads. The question no one wants to address is how do we evolve into a more ideal society where people are not judged solely on their appearance without destroying the whole cloth? Blaming the men and women who are trying to keep the peace is certainly not the way to go about it.
If we had no violent criminals, we would have no need for a violent police response.
Here's an analogy from OSHA. Once a worker willfully and knowingly disregards a safety protocol and behaves in a dangerous manner at work, the law no longer protects that worker.
Once people break the law in the presence of a police officer, that person is subject to some type of enforcement. All the media is ever showing is the enforcement of the law, not the breaking of the law. If you believe that there are not folks intentionally trying to provoke the police into scenes of violence you are dangerously naive. Are there bad cops? Sure and yes, they need to be weeded out. But the police are those we need to weed out bad people from our buildings, our neighborhoods, cities, towns, counties, and states. Thieves, rapists, violent offenders, and anarchists whose sole agenda is self-motivated chaos need to be held accountable for their actions.
Obey the law. If you don’t like the law then change the law. Do not blame law enforcement for doing their jobs.