[steve-b]

Either marriage is an immutable standard

You think that the various changes over the past century were mistaken and should be repealed?

[Uncle Miltie]

"You think that the various changes over the past century were mistaken and should be repealed?"

A: Mistaken in their original implementation. Nature, nature's G-d, and the common understanding of most societies have one man and one woman as the fundamental union.

Even those historic differences that modernity has changed(outlawing polygamy, repeal of miscegeny laws, etc.) have clarified, rather than diluted the standard of one man and one woman.