If you think the goyim were a bunch of chaste tsadikim until recently, you are quite mistaken. It’s not like this is the first time they gone “off the derekh” (for a Ben Noach) – they’ve been off for a long time. Even when they had moral laws, they tended to ignore them.
Our laws prohibit us from dealing with their courts, and the recent developments might help be creating broader support for allowing people to sign pre-maritial contracts (a kesubah is, BTW, a pre-maritial contact) agreeing to binding arbitration. Now, a considerable part of the country will be annoyed with the government’s domestic relations laws, and will be seeking alternatives.
We might be happier moving away from our hopelessly lost secular cousins. The growth of Yiddishkeit in “red” states is to be encouraged.