Yes, they are. It's similar to the losing battle they once fought to stop interracial marriage, something bigots also considered unnatural. I truly believe they see the handwriting on the wall and know that it's only a matter of time before gays have full marriage rights in all states. They see that happening and feel threatened by it. How long it will take, I'm honestly not sure. If it goes state by state, it may take something like 20 years, with the blue states giving them the rights first, followed by the less-right wing red states and finally the reddest states begrudgingly coming on board. Alternatively, a Supreme Court ruling could order all the states to accept gay marriage. If that's the case, it could happen quickly, given that the court is due to rule on Prop 8 and DOMA soon. I think it's a little unlikely that their ruling will be so sweeping that it does that, but it's possible. I think it's more likely that they just throw out Prop 8 and DOMA and keep it a states rights issue, in which case each state will offer same sex marriage rights one by one over a longer period of time.