I still don't see why it would bother anyone where someone wants to put his/her love instruments into...but the same can be said about drugs, except that drugs actually effect things, like the economy, jail occupancy, intoxicated driving etc...and there is a reason to keep drugs illegal the government profits from it, how does the government profit from saying gay people can't get married?(besides tax breaks, which everyone should be able to benefit from, if they have a partner to commit to.)
Which brings me to my next point, STRAIGHT DUDES WHO HAVE NO ABILITY TO EVER LAND A CHICK, for whatever reason, but they have a buddy, who they could actually live with and benefit from being "married",taxwise. Currently I'm married to a female so I don't really consider myself in need of marrying my best bud for tax breaks, but why should people who are of opposite sex together, get tax breaks, but straight dudes who live together get squat?