At what point do we admit that the Left-wing California city model is a failure?

The latest development in California’s failing cities is in Oakland, with Gov. Gavin Newsom sending an additional 120 California Highway Patrol officers to combat crime. Violent crime rose in Oakland by 21% from 2022 to 2023. What exactly those additional officers are supposed to do is anyone’s guess, though, given that the district attorney in charge of prosecuting criminals in Oakland has no interest in doing anything of the sort.