I’ll go with the low-hanging fruit: Mein Kampf. I’ve read it, cover to cover. As a piece of propaganda, it’s good. As an example of good writing? Absolutely not (though I will admit I have only read it in translation). Oh, and the whole fascist, racist, and generally shitty worldview of the author that he infuses into the text. And the fact that the author is literally Hitler. You 5-star that book? You’re a Nazi. Period. And as a Jewish person, I don’t look too kindly on them.
I agree with you, but I did get something from it. Their description of how people need to get energy in different ways resonated with me. The actual idea of energy transfer is bogus, but there are people who seek to create negative experiences and others who seek to provide positive reinforcement. Learning to spot them can improve your interactions with them.