He says there are IQ differences between people. Who are these "people" if not men and women? He either means men are smarter or he just randomly went on a tangent.
Let me ask you, when he says there are IQ differences between people, which groups of people do you think he means?
Here (section "Why we are blind"):
"[...] the Left tends to deny science concerning biological differences between people (e.g., IQ and sex differences)"
I don't know how else to read that other than "men are smarter". Is there any other reading?