I dunno. Could be that the hiring practices at the time, or the team that interviewed him vetted algorithmic problem solving skill and did not run a vibe check on social or emotional intelligence. Because blasting out a company wide post / email disparaging and entire class of people (who are like 50 percent of the population), and then getting indignant about the entirely foreseeable backlash is indicative of extremely low EQ.

You know neuroticism is a term of art in psychology, right? It's a value neutral term, not a pejorative. If your argument is that he deserves firing because he's sexist and your evidence that he's sexist is he called women neurotic then you're part of the reason we can't have reasoned debates.