We disagree in "fooled". People do what they want and need and are much smarter than we like to believe.
I'm afraid but I don't share what seem to be the common idea of stupid masses. It's a very socialist perspective: "People are good but they (tens of millions) are all easily fooled by a bad guy with a few rich and powerful friends."
I reject this perspective in all of histories, everywhere.
But yeah, the documentary kind of fits and far from me was rejecting it. I just took the opportunity to expand on the topic.