An interesting new piece written by Jonathan Rauch (in the recently Sullyed Altantic), touching two key points:
now is not the first time Republicans have argued with themselves over moral federalism—or, what may be a better term, moral pluralism: leaving states free to go their separate ways when a national moral consensus is lacking.
and...
As a political issue, gay marriage will be around for years, but as a catalyst for culture war, it has already peaked.