I was a data analyst for the corrections/justice industry. I have an intimate knowledge of how it works. I worked with, and trained, thousands of police, from a significant portion of the country. I have spent time corresponding with DAs, Judges, State officials, Local officials, police union reps, wardens, sheriffs, COs, etc. The whole deal. The entire system is designed to be what it is, and part of that design is to identify, and reject, anyone not in compliance. As soon as a cop begins discussing holding cops/officials accountable, or a chief begins instituting policies that reign in this behavior, they get pushed out. If they fight getting pushed out, then end up in jail, or they end up dead.

You are ignorant of what is happening. I don't blame you, most people don't want to believe things are this way, and you aren't even from here. However you truly misjudge just how, absolutely, fucked the current system is. In 1967 the USSC made a ruling that gave government officials immunity to actions in the line of duty. In 1982 they came up with a set of parameters that made this immunity so solid it is almost impossible to lose. This has been a shield for the vast majority of all rights abuse/deprivation in the US. It is why the USSC has recently been shown to be outright doing illegal things and there is, likely, nothing going to happen about it. I mean fuck, numerous police departments have been busted running, CIA-esque, black sites. You know what happened about it? The lowest man on the totem pole got a slap on the wrist, and the rest had to retire, or quit and get that job in another municipality. In the Baton Rouge case, it's starting look like it might end up being deemed a "civil" infraction, rather than a criminal one...

On top of this, there are many, many, profit motives to arrest, fine, jail, and prosecute, as many people as possible. The immunity allows them to do it in direct violation of the law, and in the case that you have the resources to sue the government, no one will suffer personal consequences, so they do not care. Most people do not have these resources, so that is already a great filter for them. I could go on about the problems with the US legal industry, because it is a profit driven industry, not a justice system, for hours, if not days.