As smart as you are you must have noticed that the word 'thesis' was in quotes all throughout my post. That implies it wasn't really a thesis. Only the New York Times piece described it as a thesis.
It doesn’t matter whether “thesis” was in scare quotes.
Unless it truly was a thesis, it will not have been preserved. Since it wasn’t a “thesis,” it can’t be found. So breathless conspiratorial articles about it are rabbit trails.
It was an ephemeral term paper. It undoubtedly reflected his radical ideas. Focus on his radical ideas. There’s plenty of other evidence for them. No one is covering up or hiding his “thesis.” Stop using the cheap trick of implying that Columbia is hiding his “thesis” as a tool to get people interested in learning how radical he is.
We have the same goal. You’ll reach it faster if you stop plunging into rabbit holes.