The problem with Rush is that he is an entertainer with the power of a commentator. His rhetoric is accepted as gospel truth by some. In this way he can be the messiah of a generation and not be held to task when any of his followers, egged on by his view of things, act on something believing they are right. The followers are acting on their own and are fully accountable for their actions but Rush just says, "I'm an entertainer", like that would cover anyone yelling "fire" in a crowded theater.
I am astounded that when Barbra Streisand or some other entertainer gives out their political view we always here "They're entertainers, what do they know? I don't want them telling me how to think!" and yet here's Rush who claims to be an entertainer strutting his stuff.