Incorrect. Party affiliation has shifted in recent months. Washington Post issued a warning just today:
Would you like to see a further swing to the right and have SCOTUS overturn: Griswold v. Connecticut (right to access contraceptive), Lawrence v. Texas (states could not outlaw consensual gay sex) Obergefell v. Hodges (established a constitutional right to same-sex marriage), and Loving v. Virginia (protects the right to interracial marriage)
They’re all predicated on the 14th amendment just like RvW. And Thomas seems to want to venture down that path, except for Love v Virginia, of course.
I would like to see it discussed in light of the RvW precedent, sure. It is possible that the Constitution was never intended to decide that, and should be a topic left to the states. Each state has its own culture, as different as a country, and each have populations as large as European countries. I don't see why a state should be forced to recognize or reject anyone's marriage. A state might want to recognize polygamous marriages like some countries do. Another state might reject those marriages. I don't see why they should be prohibited from doing that if it's what its people really want. The Constitution was originally intended as a loose unifying framework for these massive states, who already had their own laws. The bulk of health laws were always given to the states.
If your argument is... "But but but my state might make my sodomy illegal!!!", your state can already make a lot of the things you do illegal. But they generally don't. Anti-sodomy laws were a thing of the past due to unknowns and perceived societal harm. But there is data on that now, and is unlikely to regain societal support. Polygamy is currently thought to harm society and is illegal, also due to perceived unknowns. If there was enough polygamist support, a patchwork of states might start to legalize polygamy. A blanked ban on a national level would prevent that development and acceptance from naturally occurring.
If the European Union went into different countries and started enacting specific health and wellness laws at their own determination and pointed at a vague word in the EU Constitution like "liberty" as their justification that would be a no-go, obviously. This is the current situation with the rulings you referenced. It is unjustifiable to take a vague word and use it to enact specific laws. The people must decide for themselves if they want their states to codify it, or if they want to rally their states together and meet the 3/4ths requirements to codify it into the US Constitution.
There is already a process to amend the Constitution, but you want to ignore that for some reason and rely on an extremely vague word.