If you're not asking questions, you're doomed to be stupid.
The average American doesn't question much.
I'm sure we can agree that it is a much easier in life to go with the flow. Especially when it is clear that questioning authority can result in you getting your head cracked in.
In this system, American's have very little power over what happends to them politically. To think that a person who only gets one vote in a couple of elections a year, should feel empowered to make any sort of political changes is ludicrous. Why bother getting involved, or questioning anything when your voice does not amount to a speck on the radar. I believe that most people are intelligent, but are just so uninspired that they don't care about politics or philosophy.
In addition, I've seen myself become more and more isolated (by choice) because of what I believe. I think if you are going to go the anti-gov route you must be wiling to either, keep your mouth shut when it comes up in social situations (almost impossible), or be prepared to be singled out as a wacko. Unfortunately society has caused most people to fear confrontation so they nod in agreement to the accepted norms. After all, they killed Socrates for asking too many damn questions.