If that is an honest generalization, that says more about you and the company you keep than it says about US citizens.
Try this one on for size: every American I know is an anti-consumerist, anti-authority, anti-car, pro-bicycle, pro-transit, Socialist hippie organic gardener and/or dirtbag hippie sailor. Both of our statements can be true, and are reflections of how we choose to operate in the world.