He is a mathematician by trade not a political theorist. I think his attacks on leftism are generalizing as he writes from a place of ignorance.
I think had he studied political theory in academia at all he would have had a much more nuanced personal political ideology
Difference is one lived alone in a cabin and the other remained a pillar of academia.
Its all about access to information. Noam has constantly published and been in academic circles being exposed to ideas, giving lectures ect while Ted removed himself from those things and had no one just a typewriter. I am saying his ideas werent developed for this very reason