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.
Any time I encounter a writer, or really any kind of creative, that’s getting down on themselves, I talk about how I once read this shit-awful book and then years later it was a TV show. I always round it out with a variation of, you don’t have to be the best to be plenty good enough.