And you totally miss basic logic. If the libertarian says that gay marriage is fine so long as nobody's property is violated then the logical conclusion ought to be that the libertarian believes gay marriage should be legal.
You're doing a Charlie the Tuna 'good taste' thing. It's not about homo marriage being
illegal. It's about the law granting coercion and privilege in the name of a
legally decreed marriage rooted in an irrelevant personal behavior choice. Hence,
legal homo marriage vs homo marriage as a perception.