I can't say I have any faith in the California government-by-referendum process, Amos. The California voters have enacted a lot of bad law over the years, and they have bankrupted the state by requiring a 2/3 vote to pass a budget or raise a tax.
If they're going to require a 2/3 vote for anything, it ought to be required for things like restricting the rights of minorities. Outlawing gay marriage by a mere majority, just doesn't seem fair to me.
-Joe-