If parents were making sure that their children were being taught the Constitution and its history, particularly the Founding States’ division of federal and state government powers, then grade school students would probably be able to point out that the Constituton’s silence about marriage means that it is a 10A-protected state power issue.
Except that Reynolds makes the exact opposite argument that per the common law, marriage is one man and one woman.
The common law pre-exists the constitution and the constitution doesn’t abrogate common law protections for Habeaus Corpus, trial by jury and traditional marriage.
The other problem is, suppose you are right?
What happens with spousal visas?
Marriage has always been a federal domain, not the purview of the states.