Your side didn't win in the DOMA Ruling. They rejected gays pleas to have gay marriage be a constitutional right. Instead they Upheld that the choice to say either "yes" or "no" to gay marriage via a consensus is a constitutional right.
You can keep repeating it, but that is not what the court said in the DOMA decision. What they said was that if the State said "Yes", then it is unconstitutional for the Federal government to differentiate between same-sex and different-sex legal Civil Marriages by targeting one group for unequal treatment.
What you should be very worried about is (from the DOMA decision)...
"This requires the Court to hold, as it now does, that DOMA is unconstitutional as a deprivation of the liberty of the person protected by the Fifth Amendment of the Constitution.
The liberty protected by the Fifth Amendment’s Due Process Clause contains within it the prohibition against denying to any person the equal protection of the laws.See Bolling, 347 U. S., at 499–500; Adar and Constructors, Inc. v. Peña, 515 U. S. 200, 217–218 (1995). While the Fifth Amendment itself withdraws from Government the power to degrade or demean in the way this law does, the equal protection guarantee of the Fourteenth Amendment makes that Fifth Amendment right all the more specific and all the better understood and preserved."
If the Federal government's attempt to single out homosexuals for unequal treatment is unconstitutional, the that speaks to the view that - under the 14th Due Process and Equal Protection clauses - the same principal applies to the States. Again the DOMA ruling was not a ruling on the constitutionality of SSCM, the ruling was that the Federal government can't deny equal treatment of legally married couples. A very different question.
The passage above though clearly indicates that such discriminatory laws would be considered unconstitutional.
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