No, they want to destroy the Institution of Marriage by polluting it with their perversionistic "life" (read death) style.
I always ask the same question, and never get the answer.
Why, not create your own institution ?
This never gets a real answer, from anyone.
FWIW, I debated this with someone else, who was in favor of gay marriage, I asked him to give me one reason why gay marriage is okay, but polygamy (or polyandry) is not with one catch, tell me one reason, that has NOT been used against gay marriage.........Failing that, he called me a bigot.........lol