Defining marriage is a power that should be left to the states. Moreover no state should be forced to recognize a marriage that is not within its own laws Constitution and legal precedents.
I don't seem to be able to learn from experience or anything useful. History doesn't help me. Precedents don't inform my experience.
We live in an era with no historical precedents. History is no longer useful as a tool in helping us understand current changes.
To the extent that the judicial profession becomes the daily routine of deciding cases on the most secure precedents and the narrowest grounds available the judicial mind atrophies and its perspective shrinks.
History is full of examples of people who clamp down after they began to enjoy too much freedom. Freedom can lead to instability anarchy and confusion. So there can be a moral counter-revolution.