I see one line statements with weasel phrasing like “the study suggests”.
The smartest people I have known were subject to corporal punishment both at home and in school.
I detect the complete lack of any pretense of balance on the part of the presenter.
I cannot be expected to find such a presentation persuasive the the slightest. It reminds me of the vegan people who pretend that they are concerned about my health.
There’s tons of dumb people that are successful and tons of smart people that aren’t, IQ is not a good measure of intelligence at all.