“I wonder what the Founders would say to that capitulation if they were standing in front of you today?!”
What capitulation? Marriage licenses are relatively new in the grand scheme of things: they came about in the middle ages. It’s a construct of caesar, not of God. And there is nothing in the Constitution about them.
As a lawyer, Thomas Jefferson sometimes dealt in divorce law, he felt that the Catholic church taking over marriage for most Europeans, after Rome collapsed, was relatively new.
The Congress was making marriage law as early as 1780 and 1794, I think they knew a little about their constitution.