"Until the courts put a stop to it, public debate over same-sex marriage displayed American democracy..." — Antonin Scalia

I do accept that, with - with respect to those vague terms in the Constitution such as equal protection of the laws, due process of law, cruel and unusual punishments. I fully accept that those things have to apply to new phenomena that didn't exist at the time.

By formally declaring anyone opposed to same-sex marriage an enemy of human decency, the majority arms well every challenger to a state law restricting marriage to its traditional definition.

Because values change, legislatures abolish the death penalty, permit same-sex marriage if they want, abolish laws against homosexual conduct. That's how the change in a society occurs. Society doesn't change through a Constitution.

Originalism is sort of subspecies of textualism. Textualism means you are governed by the text. That's the only thing that is relevant to your decision, not whether the outcome is desirable, not whether legislative history says this or that. But the text of the statute.