As a member of the educated White class in America, I understand the temptation to label those in the working class as maggots, stupid, misinformed, disinformed, or, as here, mentally ill. Lee, who has "worked with" violent criminals, assumes her knowledge allows her to disregard the past 40 years of the gutting of the middle and lower classes, going back to Reagan, and just baldly state, with nothing resembling evidence, that a sick leader can infect others. Just by watching him on YouTube. This sounds like the plot of an old B movie, not a cogent analysis. Invasion of the Mind Snatchers. Infinite Jest used this idea, that watching a video would drive you crazy, but that was satire. Lee is serious.
The lower classes have been left to rot by the Democrats, and so they have latched on to a huckster promising them a solution. He won't help them, but that doesn't matter. That's how mad they are. Sticking it to the libs means giving the upper class the finger. As if calling MAGAts "stupid" weren't bad enough, now we have shrinks calling them crazy.
Meanwhile, the corporate class sits back and laughs while we fight amongst ourselves.