In The Ambiguous Quest for Marriage Equality, Adam Macleod puts into coherent words something I have been thinking about how to say. It’s nice when someone much smarter does that for you.
Alternate versions of marriage to the traditional heterosexual one can only exist as alternatives to the standard. If the standard erodes away, or is legislated out of existence, those marriages also will disintegrate. Please read.
We sometimes destroy that which we seek.