That is something my 7 year old would use as a rebuttle. Obviously the author didn't say anything remotely like "We should just trust the official words from knon liars". Your extremely weak distortion of the original argument is a perfect example of why many conspiracy theories are looked on so negatively. If you really believe in some of the conspiracies out there, you owe it to yourself to argue your point from a more logical place, not from complete fallacy.
Free market capitalism isn't right for America because it works better. It's right because it's free (and it works better).