I do know of that study, but does it say WHY the lifespan is 45 years?
I don't see The Netherlands and Belgium falling apart from allowing gay marriage.
You make egalitarianism sound like a bad thing. Reminds me of pushing for equal rights of women and African-Americans, as well as Hitler and his whole Aryan craze. Do you see anyone making a big deal over equal rights for women or African-Americans? I think that same sex marriage will pass and that after a few years of it being in effect, everyone will realize that it's not a big deal. Within a couple of generations, it will be no big deal, just another section in the history book that nobody cares or talks about.