I think Obama's coattails are what passed those measures.
The black and latino turnout was way up for Obama, and - according to exit polling, anyway - black and Latino voters overwhelmingly voted for the gay marriage bans; the majority of white voters voted against
the props.
I've seen many other bloggers wondering how it could be that Obama won, but these propositions failed; it doesn't seem to occur to them that there are plenty of people voting for Obama who don't buy into the entire liberal basket of goods.
Myself, I'm wiith you - happily married gay couples with full gun safes IS the American dream. Instead, we're headed for both parts of that idea being illegal.