Why isn't "conservative comedy" funny?

With rare exception (I despise Rush Limbaugh as a person, but some of the parody songs he plays on his show are hilarious), "Conservative comedy" just isn't funny. I think I've figured out why, so here goes.

Ultimately, comedy is based in truth. Comedians see the truth in a way that "normal" people don't. Comedy reveals the underlying truth to people, helping them to accept it by making it funny. A spoonful of sugar helps the medicine go down, if you will. Carlin, Hicks, Louis CK, these people expose the dark underbelly of society in a way that is uncomfortable, which is why they need to make it funny. They're not lecturing us, they're letting us in on the secret, making the implicit explicit.

Today's conservative movement is deluded. By conservative movement, I mean the modern GOP, not individual conservatives, many of whom disagree with today's GOP. Look at the number of bald-faced lies made in RNC convention speeches. Several cases can be made for showing Obama the door (although I think they are all invalid if the replacement is the current GOP). If actual arguments exist for their side, why does the GOP continue to invent arguments?

I have theories, but I'll save them for another time.

The reason "conservative comedy" doesn't work is because it's not based on the truth. Hurr Hurr Teleprompter! Any reasonably intelligent person who thinks about a teleprompter joke for a moment sees the lie. Would someone who relies on a teleprompter do well at a debate? Oh, he wouldn't? Then how come Obama outperformed McCain at the debates? Oh...it's bullshit, isn't it?

So, if you want to know why conservative comedy doesn't work, remember that last week, a national party built a convention on an out-of-context statement that anyone with half a brain can see through. A convention built on lies? Congratulations, Republicans. You DID build that.