The state doesn’t care who was defrocked by a religious group. The marriage was performed by a state licensed, at the time, rabbi. It is equivalent to the state as standing before a judge.
What concerns and disgusts me is the state also would also accept 2 men or 2 women as the celebrants.
Not talking about civil — the issue is whether or not the marriages this rabbi performed were halachic. Jews are answerable to a higher authority, and much more involved. These interfaith couples were married under the false assumption their marriage was sanctioned by Gd and of course it wasn’t.
Also, no Conservative or Orthodox rabbi perform same gender marriages.