It's perfectly possible to believe that society should accept homosexuality and also be against gay marriage. It's a complex issue. 'Marriage' is a religious ceremony, and freedom of religion and association is a thing. If the Christians don't want to let the gays join their club and do their funny little ceremony, then so be it. Any change needs to be driven by the Pope and the church itself, not enforced by the state.

That is completely distinct from the concept of a legal union as defined by the state, which should be available to all consenting adults. Hell, as a mathematical type myself, if you can get it working in 2 dimensions you should be able to generalize to n dimensions, so why not legalize a union between any n consenting sentient beings while we're at it?

The bigger mystery is why any non-christian gay people would care...?? If you're not Christian, you shouldn't care about a religious 'marriage', only civil unions. If you are Christian, you should take it up with your Church and work on change from within. I mean how is it going to work? If you're a Christian gay and you feel hurt and not included because your faith denies you the right to a religious marriage, are you really going to feel any more included when the state kicks the door down and forces them to accept you? They have to decide to accept you on their own.

I just don't get the whole issue.