Besides the convenient mischaracterization of claims that the middle class is shrinking, I assume a "Milton Friedman Distinguished Fellow at the Foundation for Economic Education," with a Ph.D. in Economics, would be aware of everything I wrote above and focus on those more important aspects.

He might not be, but the way he is giving a talk, wearing a suit, has the video up on YouTube, and speaks as if he is very knowledgeable on the matter, if he were to be incorrect or ignorant, it would still have a disingenuous effect on the viewer, even if he doesn't know that he's wrong or ignorant and totally believes his own body odor smells of roses.

And notice I said "if he were to be incorrect or ignorant", I have not tried to fact check or anything what he's saying in the talk, and so I'm making no claim to the accuracy and veracity of it.