Earlier quoted context omitted.
I don’t think him seeing narcissism everywhere implies that he’s projecting. Sure, maybe he is. Or maybe he’s making a genuine observation that has unpleasant ramifications. Maybe he has some hard won insight into humanity. Why can’t it be true? Also, making empirical observations and hypothesizing about their causes may not be standard, but that says nothing about their validity. Granted it’s not proof. I think your…
"Maybe he has some hard won insight into humanity." Why would we presume that? He obviously believes humans are not a reliable source of information as to what they are thinking, so like Freud he knows humans better than they know himself. That seems to open up the possibity that he's in cuckoo land, it's not like someone can correct a false notion of his by saying "No, actually I don't want my wife to be a sorority…
The fact that these things are hard to prove doesn’t make them wrong.
> He obviously believes humans are not a reliable source of information as to what they are thinking, so like Freud he knows humans better than they know himself.
What do you mean by this? Obviously humans are wrong about themselves and others all the time. I don’t see why you can’t know things about someone else that they don’t themselves know. I think if you actually read the book you would see that often what he’s doing is listening to what people say even more than they themselves are.
> Why would we presume that?
We shouldn’t, and I didn’t, but it’s just as possible as your belief that he’s crazy. We should think about what he said instead, and see if it makes sense.