The California constitution requires a simple voting majority and no legislative vote to pass an amendment. In a low-turnout election year, that means that as little as 4 million votes, 12% of the CA population, can pass an amendment that could make a huge difference in people's lives, such as an amendment like this year's Prop 8 that would invalidate (in the eyes of California law) over 10,000 marriages!
Vote No on Prop 8, the Pro-bigotry Amendment. Because you aren't a bigot. And tell your non-bigot friends to do the same.
Perhaps next election we can work on making the California constitution less broken.