Naturally in my example, the inner-city gang are the bad cops and the inner-city family and community leaders trying to make a difference are the “good cops” who just can’t seem to budge the numbers. If we were to use the logic applied by ACAB, then it’s all futile and any attempt at cultural change is pointless because change hasn’t occurred yet or fast enough.
I think they are quite comparable. Both rely on a) an extremely obvious misrepresentation of the root of the problem, and b) a fallacious stereotyping of a group based on a subset of the population.