This is not the first time that crime was out of control in San Francisco. In the 1850s it was not a safe place to be and the citizen’s rose up to enforce the law.
https://www.legendsofamerica.com/sanfrancisco-vigilantes/
I think the only reason that this has not happened today is the people that could do this have left San Francisco (if not California).
San Francisco is doomed because the Vandals have entered the gates of the city and the city is running out of tribute to pay them (by allowing them to steal without consequences).
Businesses are leaving and without businesses cities can not exist.