You summarize so many of my feelings on this topic. From a religious standpoint I believe that gay marriage is wrong and that it is a sin.
I always go back to the story of Jesus & the adulterous woman - he condemned the crowd for wanting to stone her (judge her) but at the end of this story he told her to go and sin no more. I have trouble finding that point between judging and being a party to allowing a sin to continue.
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