Because carbon phobia is more dear to them than jobs, energy

Sacramento Bee:

CA Needs to Ban Fracking Before It's Too Late

The headline discloses much of what is wrong with California and why it is losing population and business.  Its hostility to traditional energy has made it more expensive to live there at a time when its high tax high spending government  along with high regulations are also chasing business from the state.  Its infrastructure is crumbling while it is overpaying government employees and retirees.

The anti energy left has been making up horribles about fracking, despite its many decades of being used safely to enhance production from wells.  There real opposition is based on their carbon phobias and their desire to strangle oil and gas production so that less efficient alternative energy will look more competitive.  It is another one of the policies that is destroying the economy of the state.