In Rush’s case, I suspect he’s silent because he disagrees with many conservatives on these gay-related issues . He made a comment a few years ago that he has a different perspective on homosexuality than most, but he didn’t elaborate. In general, he seems more opposed to the courts making law in this area than he is against gay rights in general. I recall him saying he opposed sodomy laws and thought they should be repealed, but that the SCOTUS was wrong to strike them down.
You don’t know Rush very well. He says the people have voted and amended their states constitutions. Problem solved.
He also coined the terms “addadicktome” and “cutadickoffofme” to describe freakish self-mutilating sex change operations.