Of course the left is havening a fit about this (just look at their reviews of it). I can only think of three reasons for this (though it might be all three). First, they cant stand being the butt of the joke, they can dish it out but they cant take it. Second, they fear the show and its success (it got the highest ratings out of all the show out there when its on). Third, liberals just arent smart enough to comprehend something as complicated as humor; case in point just watch the daily show.
I love the show. I have seen every episode and it just keeps getting better.
It's a problem. Everyone knows conservatives can laugh like hyenas over jokes about us IF they are actually FUNNY. Liberals are so insecure about their own positions that they are not able to see any humor in them.
I believe that if two shows went head to head, a conservative comedy vs. a liberal one, each with equally good writers and actors, the conservative one would be more watched because our humor is not limited to "The Other Guy is Dumb, HAR HAR HARHAR HAR!"