Yeah, it kind of reminded me of the garbage my old mate and his girlfriend used to spout when I was friends with them - ‘black people have low IQ’ crap. One of the reasons I avoid making friends - I have always attracted nutters.
"IQ has no relationship with the value of a human" has mostly always been a dog whistle; "so ${disfavored outgroup} is scientifically established as less intellectually capable, that doesn't make them any less valuable".
"Average IQ of 83" ... so the average person is "borderline mentally disabled"?