I instinctively cannot warm to anyone who believes in one race's superiority to another.
I would not be able to talk to him and have no desire to.
To put it in common phraseology, he's too up his own you know what.
His methodology is fundamentally flawed and is little different from 1930's eugenics, in my opinion. I recall all too well an encyclopaedia from my childhood, and old one: it had a "family tree of mankind" and the branches of for example the aboriginal peoples came lower down as did some other cultures.
Human potential being realised depends on culture, upbringing, experience, and learning opportunities going back generations imo.
Brain development depends on matters like complex and substantially different very early years experiences.
Judgements on cultures and race also depends on what we value most.
Arrogant white male.