I'm not going to address your little thesis here--it's equal parts ignorant, dim-witted, and pretentious. As for the Black cops shooting Black people (and otherwise beating them up)? They're just doing the job they were hired to do in the way they're trained to do it. We all got to see some of that training in action in the George Floyd murder:

https://www.nytimes.com/2020/06/27/us/minneapolis-police-officer-kueng.html