Okay this one is easy. I see no reason why anyone can not marry whoever the hell they like. Heck straight people mess up the institution of marriage plenty so I can’t see why we should have a monopoly on it. I am not religious and so for me people should be able to show and celebrate their love in anyway they like.
I do not even mind if my kids turn out gay which I guess is a good thing as my ex always said he would disown them. I had kids to love them unconditionally and there is nothing they can do that will change how I feel. Not that I even think being gay is something that I would have to work on to accept or anything. It would just be their choice, same as a career choice or anything else they feel driven to do from inside.
So like most things I am liberal on this one.