It isn't, and should be available to all gay couples
Being gay is wrong, so they can't get married
The sanctity of marriage. No, I wasn't laughing. I was coughing. *cough* ... see?
It will set a bad example for Christian youth
I don't honestly have a good reason, but I still say no
Other (please explain)
For every religion that uses the Old Testament, marriage is the first ceremony and institution that is created and it was created by God and performed by God. You can't find a more holy ceremony and/or institution. It just doesn't exist.
Yes, I know...tons of people have bastardized marriage in the past and some seem to think that is justification for continuing the improper trend. It is not.
As for me, and a growing number of people, it is a violation of the First Amendment to regulate marriage in any manner. If I had my way, the government would drop all references to marriage. Then, if they chose, they could replace marriage with a secular social contract. That would not violate the First Amendment and it would provide a much easier path to the fairness you seek.
You, my brothers and sisters, were called to be free. But do not use your freedom to indulge the flesh; rather, serve one another humbly in love.For the entire law is fulfilled in keeping this one command: “Love your neighbor as yourself.”