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 feel like part of the problem with the Alchemist is the “emperor’s new clothes” aspect of it. If I remember correctly, it was so hyped up. It would be like if Yellowstone was hailed as the best tv series of the decade. Like yeah I have no problem with people enjoying it, but it also shouldn’t be critically acclaimed.