(This is a philosophical question. Just exploring ideas)
Increasing number of people have nothing to lose. Rioting is pointless and dumb and can land you in jail. People publicly writing "bad stuff" on social media are risking jail-time or at least having their lives destroyed.
Why is nobody killing the rapists and murderers? Why is there no secret organization cleaning up the streets? Why are politicians and "public servants" allowed to feel safe?
I think this is a historical anomaly.
It’s illegal.