I don't know your exact views, how can I answer unless you tell me?
I will say that I've never come across a non-homophobic reason that someone disagrees with letting gays marry. If you have one, I'm all ears (no joke).
How about you explain how this is any different than interracial marriage and racism?
You just said all taking points are homophobic, now you're saying you don't know my views. My guess is that you don't know the views of 99 percent of people who don't agree with it, and since they're all "homophobic", you don't care to know.
So basically it boils down to all taking points not in favor of it is by definition, "homophobic". Do you know how stupid you are for holding that view?