I think it is unfortunately all cops. I'm not even ACAB.

A police officer may be a good person, and a police officer may be a good police officer, and no matter the case, a police officer may do good things, if we are lucky. The role grants privileges, explicitly or otherwise, which can easily be abused. Cops are an instrument of the government, primarily concerned with law enforcement and working closely with prosecutors to find citizens guilty. They are not required to enforce laws, or provide public safety, so this allows for selective application of these responsibilities.

They are not inherently good or bad, more a necessary evil, and they should never be trusted. Interact with them as little as possible, watch them closely when you see them interacting with the public. In some cases they're good people doing good work, great. Not all the time, sometimes it depends on the person, the circumstances, or both.