re: Will anybody who previously support gay marriage admit it was a mistake ?

You don't because you don't understand the concept of inalienable rights.

If I'm born with a right, so are you. What you do with it is up to you and not my business until you make it that way by stepping on somebody else's rights. The Constitution spells out how the government will be structured and what the government CAN'T do. That's the bill of rights. They aren't granted by the Constitution nor the government. You are born with them.

Do you not believe that?

Explain what you think the Constitution does.