I don't think it makes sense to assign blame, I don't care who's fault it is, and I believe he's free to share his thoughts. I hope you're not suggesting that being fired from a company is somehow censorship.
What I care about is that his ideas are regressive and unintentionally sexist. He is using specious scientific sounding arguments to say we should turn a blind eye to cultural sexism. By ignoring it, we perpetuate cultural sexism.