I could see it being shut down by ruling on it the same as they did to get rid of Roe v Wade-just say it is up to each state-I like that-if you want your state to be involved in marriage, then get a vote. Personally, I think marriage is a man and a woman-and it is the business of the pastors, priests, rabbis, imams etc-in other words, clergy-not govt. I don’t think most clergy will go for marriage between same sex individuals, or anything other than what is natural- a man and a woman...
The federal law DOMA allowed states to do whatever they wanted with the definition of marriage, in that state. Federally, only man-woman marriage relationships could be recognized.