Update Mar. 24: The Indiana Libertarian Party learned late yesterday that the e-mail purportedly sent by a state senator demanding that the Libertarian Party to keep postings about gay marriage to a minimum was a hoax. The Indiana Libertarian and Republican Parties are co-operating in the investigation. I have removed the e-mail (there being no point to keeping it up), but am retaining my comments at the end.
Gay marriage is a political issue for two reasons: (1) because the state decided that it wants to regulate marriage through the issuance of a license, and (2) because our health care benefits are structured around marriage and families. If the government got out of the licensing business (or made it neutral, as in "whatever is is what it is") and we returned to a free market in health care, the issue would go away on its own.
I do not like the idea of gay marriage myself, but I would rather see religious organizations working to persuade people of its immorality, than to have its existence or non-existence dictated by the state.