More like “Rationed Thought”? Rush is a scholar of political science. He may indeed be entertaining from time to time, but most entertainers are not nearly as politically astute as the Doctor of Democracy is, and politics is not his only forte’, either.
Rush is not a scholar. He is an entertainer, something he himself has stated from time to time.
Now, if we’re to use your definition, I might remind you he was close with the Bush family, which would by definition, make him friendly with/to “The Establishment”.