This breakdown of cultural consensus is going to haunt American jurisprudence and political discourse for the foreseeable future

Walter Russell Mead has a post, Christianity After Constantine which reinforces my question in Cultural Herd Immunity Thresholds. Mead notes,

Where we disagree with Berger, then, is that the conflict over public morality isn’t a cage match between a unified Christian body and a unified secular movement. Society is becoming so diverse that any civil law on marriage will coincide with fewer people’s beliefs about what the law should be. This breakdown of cultural consensus is going to haunt American jurisprudence and political discourse for the foreseeable future.