Aside for a liberal, black professor, the sympathetic interviewer provides a veritable conveyor belt of one annoying, low-information Trump voter after the other - and encourages each one to express their own personal misconceptions. It's a bit painful to watch and resembled having to watch paint dry - or worse, having to read an Ayn Rand novel from the first page to the last.
Despite the best of intentions by the filmmaker James D. Stern, the interviews of poorly educated republicans - and one happy-go-lucky, rich and overprivileged Floridian fuddy-duddy (James Snot-Nose, the III) - fails to provide any actual 'Aha!' moments. If anything, it cements preconceptions that the presidential election of 2016 was not about wealth and income, but rather the level of education as post-election polls and analysis by FiveThirtyEight indicated.
People lacking a high-school education were the most likely to vote for Trump, while people with doctorate degrees the least likely. The pattern even held true statewide: in 10 of the best educated states Hillary won, while in 9 of the 10 worst educated states Trump won. To summarize, if you ever wanted to know what it looks like when a bunch of people climb up Dunning-Krugers' mount stupid, then have a look at this doc.