This is one of those bad topics to talk about but to me it seems obvious. If there were no laws to prevent people from stealing, killing each other, you wouldn't have society. Yes you have bicycles/car stolen but I would think it would be a lot worse. I don't agree with that ACAB saying but I think people who haven't lived in a bad place say that. But I also am aware of racism/stereotyping it's funny you mention being white as yeah it's worse for not being white.
Laws are even less capable of preventing these things than police!
What actually prevents these things is social homogenization, equality, and shared community goals and experiences.
Does this mean that the police is always right? No, of course not, that is one of the many things wrong with the 'Die Partei hat immer recht' (German for The party is always right, part of the lyrics of the national anthem of the German 'Democratic' Republic [3]) philosophy. Nobody is always right and any power is there to be abused by those willing and able to do so. That's why there is oversight of those in power which - admittedly - isn't always as effective as it should be.
[1] https://www.historylink.org/File/22870
[2] https://reasonabletv.com/podcast/chop_s_deadly_legacy__5_yea...
It's supposed to be here for more serious matters.
in theory it's "some crime, starting with the most important"
Granted, there's a rate of return issue here that the cities will struggle with, but for the small town forces, it's worth their time to keep petty crime down IMHO.