It seems you just don't understand Rush's "nuance", or perhaps your sense of humor is out of sync with his and millions of other Americans. As a remedy for your ailment, I recommend seceding from society, using an obscure computer operating system and taking additional pomposity lessons from F'n Kerry.
There's about as much 'nuance' in Rush's schtick as there is in the act of the average baggy-pants burlesque comedian.