As background for anyone unfamiliar, Pinker frequently tries to talk about how the world is actually getting better even though it might seem to be getting worse, but since he usually doesn't understand the arguments he's repeating, he quite frequently gets it wrong and does a disservice to the point he's trying to make. The late Hans Rosling was someone who made similar arguments, but as a statistician, Rosling was actually making conclusions based on real data, and therefore was much more capable of talking about exactly why we should be optimistic.
There really ought to be a word for the inability of people who are experts in one subject to engage other subjects as if they are anything other than an expert. Pinker also wrote a book recently on the historical and societal impact of the enlightenment, in addition to his earlier book on how violence has declined in the world over the past few decades. This is all kinda strange, considering he isn't a history professor or anyone else remotely qualified to write a book on these subjects.