>Was he emotionally hurt by clever women lying to him? Or did he just cut-and-dry accept patriarchic notions of women as lesser beings who can't achieve the same standards of intelligence and morality?

Or maybe it's neither. Maybe he didn't think twice about it, like most of us reading it, because it's beside the point.

>That double-standard is a flaw in his thinking and his character

Thankfully, HN has some glass-house residents eager to point out such character flaws, despite the content.

I'll reiterate: if you read something like the article, and your first thought is "this author might be sexist!" (emphasis on might), then you are not without your own debilitating flaws.