I've never had trouble with an officer either, but of course people just dismiss that as the fact that I'm cis white scum. Respect, hands where they can see them, and communication do the job in most situations.
When all that is given and the police officer is still horrible and abusing of their authority, yes, movements need to work to get them fired. But you're never helping matters when you see one bad cop and instantly dismiss them all as awful and corrupt.