http://en.wikipedia.org/wiki/Scare_quotes
Also, I don't recall saying I was against gay rights. For the record, I favor giving gays the same set of rights that straight people should be given (as opposed to the set of rights straight people are actually given). But this is widely interpreted by lazy people as meaning I'm against gay rights.
If, as some people claim, marriage is a sacred institution, why is the state involved at all? Who would be OK with having to go to the courthouse to get a baptism license?
For people who object, choosing to attend a church that doesn't perform gay marriages will be no different from choosing a church that wouldn't perform anything else. Churches aren't regulated. (note: this is almost a "let the market decide" argument)
I do not, however, support the rights of fellating bats to have civil unions, because bats are creepy.