Cops are literally class traitors. They are workers employed by the state to oppress workers in favor of bourgeois interests. They organize their efforts around protecting shops from perceived threats to profits - unhoused people just exustinfmg nearby, often the same for black people, teenagers just spending time together, etc. They are strikebreakers and the front line enforcing state-sponsored marginalization, itself a reflection of ruling class interests.
I am using the term correctly and it is not some kind of schoolyard insult.