You have a fundamental misunderstanding.
The philosophy behind ACAB is that the American police system and its proponents abuse the system and work to keep each other from facing consequences. “Good cops” may enter the force, but they don’t last long, because those who don’t play along and look the other way eventually get ousted, whereas those they tattled on get rehired at a different station.
The idea isn’t that literally all cops ever will always be bastards. It’s that (under the current system) all cops are bastards.
Not really. We all still recognize that a police officer murdering someone is fundamentally bad.
Just because people are glad that a violent, brainwashed magat died bleeding in the street doesn’t mean they think it’s okay that the system allowed for it.
Are you familiar with “even a broken clock is right once a day”?
Lol.