[hippoman]

Yes, "who is going to be harmed" should be the question, not anything about sexuality. Unfortunately most people, both pro-gay and anti-gay miss that point and continue to hold arbitrary prejudices against the sexualities and activities which don't fit what their peers tells them to believe. I can't enumerate them on HN without creating hostility but to get a feeling for the hypocrisy of strongly pro-gay advocates, see Paul Graham's "What You Can't Say" essay http://www.paulgraham.com/say.html