I think most of these issues are symptoms of the fact that "People are forced to take decisions in limited time, based on limited information and possible misinformation". It has nothing to do with the fact that general public are dumb or ignorant. How do you expect me to make informed decisions about the world if I am forced to work a day job and raise a family while taking out time for personal entertainment and recharging. To remove the constraints, one must imagine an alternative universe where a person can stop time, read and reason as much as he wants. In such a universe, these theories would fall apart.