Is this the first time you got into this thread and did you only read this page? Cause the whole idea this thread is to point out is that US police services have is a big problem of racism (and other isms), a big problem with (aspects of) police practice in general, and that police officers are protected far beyond what's reasonable, and hence often escape punishment.
That concept can be discussed, of course, and it does not necessarily mean that all cops are bad and so on (although that depends on whom you talk to). But to come in here and think that saying something like 'bad is bad and needs to be punished and that's it' is a meaningful contribution - that's just incredibly naive compared to the actual situation people are highlighting and discussing in here.