Firstly most of this is based on the idea that as a programmer you are only either great or shit, and that this is somehow a problem of the industry rather than just being something entirely human and normal in ANY WALK OF LIFE (the best and the rest).
Secondly, there's this awful assertion that this purported industry problem has resulted in a less diverse industry. (What does that even mean, other ethnicities & women can't handle pressure as well as white men?)
But imagine how frustrating it must be to be a woman with a decade of experience
and have someone assume that she doesn't know what she is talking about.
^ This just comes out of nowhere, someone assuming that a woman programmer "doesn't know what she is talking about" is not related to any point he's made previously.