Hi I don't live in the states, but in the UK there are plenty of same sex 'marriages'. It doesn't mean that we see more same sex couples around. To be honest where we see it most is on the TV and in films.
I don't believe that an acceptance of the legal joining of these couples changes anything in society itself. (from my experience).
The fact is some people are born that way. The way I see it is that love can never be wrong. I'm not condoning the acts they perform, but I do believe that if 2 people love each other then after 30 /40 years of being together and having their finances intertwined because of just that fact, being able to protect themselves legally is not a bad thing. In the Uk I don't see it as a marriage in the same way but a legal agreement that means that if one of them dies the other can inherit and can visit as a relative in the funeral home.... Or if one becomes sick the other can visit and make decisions as a next of kin.
I have a cousin who was born without the ability of have sexual feelings for women. He tried but it is absent. His sexual desires are towards men. (I don't believe God makes mistakes) Thats how he was born.
Again I don't condone the act, but this man is not promiscuous. He hasn't chosen his sexual preference. He has had a 'friendship' with another man since High School. They are now in their 60's. They are quiet and unassuming (Catholic) people. If one should get sick they would want the other to be there and not have to fight red tape at a time of great emotional pain. The fact that they are now 'married' doesn't change anything for those who know them or those that don't. It just gives them peace of mind for the future.
My kids went through their teens knowing a 'difficult' promiscuous gay man... and really can't stand to be around it. They don't judge homosexuals as people but dispise the culture that can surrounds them. My daughter has a friendship with a gay couple though and because they are again un assuming quiet self respecting people, she doesn't have a problem with it. They are actually good to go out with because they are safe! There is right and wrong in every community. Personally I find it offensive to see overt and open, promiscuous sexual behaviour whether gay or straight. Its promiscuity that is wrong and not love.
I don't know if that puts your mind at rest. Really I try and think of the marriage thing as a legal thing and nothing to do with Gods union between 2 people. Your fear of it will have more effect on your kids than maybe a Christian acceptance of everyone as individuals. Fear leads to judgement....and believe me those who struggle with this judge themselves enough.... I thank God I wasn't born with it. There bit for the grace of God go I?