It's because the far left that dominate all levels of SF/Cali politics, including many senators, city supervisors, city attorneys, police commissioner, judges a

It's because the far left that dominate all levels of SF/Cali politics, including many senators, city supervisors, city attorneys, police commissioner, judges and non profits - don't believe in "carceeal justice" and so refuse to do anything about it. A common belief is that prison is criminogenic, because people who spend more time in prison tend to reoffend more often but this largely gets the causality backwards. This causes them to ignore/deny the pareto distribution of crime that underlies most criminal justice systems so we have a fairly sizable population of serial violence reoffenders that are just caught and released on a weekly/monthly basis until someone dies.