California has a few big advantages due to the state: * Non-competes invalid * Well-understood legal system for startups
And big startup-relevant disadvantages: * High taxes on income and especially capital gains (taxed at the 10.3% rate!!!) which force out some angel investors, and potentially reduce capital formation for new angels. * High cost of living (which makes engineers expensive, and hurts during bootstrapping) -- some of this IS due to California government decisions.
Employment law, minimum wage, etc. don't really affect startups directly.
"Uncertainty due to the state being bankrupt" is a major new negative factor, however. Even though the current situation still leaves SFBA as the top startup location in the world, I could see a dying California enacting new policies which change this.