Traditional Marriage has been illegal in the United States since 1969. Louisiana attempted to permit (not to require) couples to choose Traditional Marriage, and their law was ruled unconstitutional.
Traditional marriage is a very, very poor choice of words to describe at-will coupling that begins with a pretty dress for opposite-sex couples.
Traditional marriage is 1) Permanent, 2) Sexually exclusive, and 3) Involves a man and at least one woman.
Advocates for what they call "traditional marriage" don't support any of the three.
We all know what Traditional Marriage means, try the National Organization of Marriage.
https://www.nationformarriage.org/
Sorry, Marriage is ordained by God as being between 1 man and 1 woman.
So they wanted to make it hard to divorce, and that got ruled unconstitutional?
Go figure.