When gay marriage came to the forfront, religous conservatives were confident they had the high moral ground and would prevail against it. The irony is that, in their failure, they have come to be viewed as on low moral ground.
The first mistake conservatives made was to claim gay marriage would harm straight marriages. It didn’t occur to them they would be called to give an example of harm and that they would not be able to come up with one.
As time went on, it began to dawn on the majority of the public gay marriage and straight marriage pass in the night and never see each another. One does not affect the other.
Conservatives should have dropped that angle of attack early, but they stayed with it long after it was was a dead chicken. Conservatives began to look like the moral lessers, repeating something that is not true.
Undaunted, conservatives shifted to another line of attack, religious liberty. They began saying their religous liberties would be harmed because they would be forced to participate in something with which they had a religious problem.
This argument is not turning out to be any more successful than the harm to straight marriages angle. The public sees religious liberty as a desire to discriminate under the cover of religion. There have been a few disputes about wedding cakes and flowers, but mostly the thousands of gay weddings have gone off smoothly.
Conservative political operatives are simply unable to understand this issue.