[SketchySeaBeast]

You're conflating psychologist and psychiatrists. Also, that sort of thing was used to rationalize eugenics a century ago - I'd be very interested if you could found some mainstream psychologists/psychiatrists who espouse those beliefs.

Edit: I see you added "Admittedly, the people talking about this are non-psychologists, but some of them appear to reference the psychology literature."

That's like making the argument that anti-Vaxers are good scientists as they sometimes reference the literature.