Gay Marriage "Inevitable"

VP Biden says that gay marriage is inevitable just as it was in the military it will come to pass in our society as well.  I'm wondering if the government will sue religious organizations for refusal to wed gay couples and essentially create a state religion in the future.  Wonder what outrage that will create: http://www.foxnews.com/politics/2010/12/24/biden-says-gay-marriage-inevitable/