From the Court's point of view this same argument could have been applied to the states that enacted the Separate but Equal Jim Crow laws.
Absent a Constitutional Amendment, this is a done deal. The legal basis is just not there to continue the ban.
BS. The question of slavery and race had been long simmering. For centuries, since creation, sodomy has not been considered on the same footing as the human rights of those with different skin color.
Race is covered specifically in the 14th Amendment, but “sexual orientation” isn’t.
They aren’t the same analysis.