This is what the people voted on, not once but twice.
"Only marriage between a man and a woman is valid or recognized in California."
Very simple.....they voted on the definition of marriage. That's it! No rights, or slavery, or majority/minority......
Why is it so controversial for society to have, recognize, privilege, marriage as a union of husband and wife? Because a minority within a sexual minority want their personal intimate same sex sexual relationship called "marriage"?
There is a part of me that completely agrees with your "why vote?" attitude, but upon deeper reflection I think that while it is good for the majority to have their voice, it doesn't necessarily mean that the majority is right, and that is where overruling, such as this, comes in. In the 1800s, the majority felt that slavery was perfectly fine, since THEY were not the slaves. In the 1950s and 60s, the majority felt that blacks should be educated separately (and NOT equally) to whites. On playgrounds at schools throughout the country, a "majority" of kids might "decide" not to let little Jenny or Johnny join their game because they are different, or "gingers" (red-haired), to talk with a lisp or accent. The majority is often wrong. That is when a courageous minority must stand for what is ultimately right.
My particular stance on this whole issue is: if you don't believe in same-sex marriage, then don't marry someone of the same sex. Period. Why does what I do with my marriage somehow affect yours? Only those with low self-esteem give a crap about what someone else has, does or is. Live and let live. When no one is being hurt, let's stay the hell out of other people's business.
I DO understand the whole frustration with a vote being overturned, however, and it is a bit hard to swallow. But that is how a democracy works. There are checks and balances that seem to keep everything working towards a common goal of democracy. At least I hope so.