These hosts know their listeners are not stupid. But again I don't remember much mention of this issue at all, apart from on Michael Savage's show.
If I am wrong I thank people for corrections in advance.
Birthers, and the birther arguments are not welcome on his show.
None of them want to talk about it. All of them change the subject faster than light. Even THEY mock it, either being deliberately stupid, or honestly ignorant.... which it is I am not sure.