I can't figure out why any Libertarian would support the 'Marriage Equality' movement. It looks like
statism to me. It infringes on religious liberty and property rights. Last year, a New Mexico Court ruled that Christian photographers cannot refuse to photograph a “gay wedding” on religious grounds. Certainly, a Christian photographer shouldn't be forced to participate in a gay wedding. This stuff is insane. It's oppressive and has no place in a free society.
There's a particularly good article here:
Stupid Meme: Libertarianism & “Gay Marriage”