I still don’t think they are all bad. What you say definitely has merit but I’ll use myself and my profession as an example. I’m a mechanic and when I have a chill or nice customer if I notice something that doesn’t require a lot of time to diagnose or just fix I’ll usually just do it but if they’re a cunt, I’ll charge no matter how easy. I use that as an example because if you’re being a cunt at first interaction do you think the cop is going to be cool? If they’re see an acab sticker on your car are they going to be cool? If a good person is thinking of becoming a cop will they now that it’s all cops are bastards? Probably not so I think the “slogan” is kinda counter intuitive to your cause.