Like when people were burning witches?

Why did people burn witches? Maybe because someone in a position of power was in search of a scapegoat to blame because their position was threatened?

where all disputes are "solved" by clan-violence and vigilantes on the streets

Very non-hierarchical structures you're describing here. /s

Why do you believe, when your neighbours form their little vigilante groups, that they will help you when someone rapes you? What if the rapist is a friend of them or even someone from that group? What if they believe it's okay to rape specific people or under specific circumstances?

I'm not proposing "neighbors form[ing] little vigilante groups, so... Idk? 🤷