Suppose you have a system where 1 actor is bad, and 500000 actors are “good except that they protect that one guy”, and then the one guy dies of a freak heart attack, and then all but one of the 500000 are replaced with “good actors” except that they defend the guy who remains from the 500000.
Are they bad actors?
You're reducing it down too far. Policing has a problem policing itself -- it's very well documented.
People take it too far in both directions, but it's safe to say that there's more than one bad actors and the system demonstrably tolerates and defends them right up to the point where they are forced not to.