Yes, some guy who was governer 45 years ago is responsible for all of California's problems and not the 40+ years of bad left wing policies that followed it.
Left wing politics has had marginal effect on California relative to the huge destructive power of Prop 13. Its passage immediately led to the local governments needing to be subsidized by the state government and a massive transfer of wealth in the ensuing years from renters to landowners. That Prop 13 also tied the hands of the legislature in changing tax code led to most subsequent programs being funded by ballot initiatives that earmarked all funds for specific programs, even if those programs later became lower priority, and those ballot initiatives that were funded by bonds tied up the general fund to leave very little left over for your Boogeyman left wing politicians to affect.