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.
It has 57% liked on Google when I looked this up.
That actually implies brigading by haters- it is actually under its true rating by a lot. Normally if something is some extremist thing, almost all the people engaging with it like that thing, and no one else has any interest at all. In this case, there must be people going in and doing hate-votes. There’s all manner of hate literature, devoted to demonizing or lionizing absolutely every race, religion, or nation, but a normal person has never heard of any of it. This one, unusually, has notoriety.
It’s a pretty important historical text that gets engaged with more by people who are seeking it out for historical context and understanding than most texts of the sort that are mainly sought out by those who agree. Not so much people brigading, just people who don’t share the views of the author being more likely to have read it and be disgusted by it than most hate texts because of the historical significance to a time period that many have interest in and that we’re still seeing consequences of to this day
In my experience that’s actually really low as car as google ratings go