I don't care what other people do in their bedroom.
I don't care about civil unions - two people growing old together does benefit society, and sure, give them the same financial benefits that married couples receive.
now, if I was with my son playing at a public park, and a boy/girl were kissing, I might not think it was a big deal. If two grown men were embrased and swapping spit, yeah, I would take my kid somewhere else to play. Not because I don't respect their right to do that - just because I'd rather my son try his first kiss with a girl, not with a boy. if my son ever did go that route, I'd be a little weirded out, but if he was truly happy, the goal of this life, well then I'd be okay with it. I'd miss grandkids though.