i have not said that it was the best way, im just making a statement about human nature.
And I'd like to say that we can easily rise above that. It's not that hard. The only thing needed is for people to refuse to hurt other people. Not really a difficult thing. Basically, you just need to do nothing and the problem is solved.
You've never encountered organised violence. Once you meet a group of people that can't be stopped without violence, you'll think differently about refusing to have police.