I get what you want to say: to have an educated opinion, you have to go to the source yourself. I generally agree, i just can't find the waste my time with every rambling mad men that got published.
i consider myself pretty open, but i really have a hard time understanding the appeal in ancient astronauts and the like. like i get people wanting contacts with aliens to be a real thing. but i had watched some documentaries back in my teens that was produced with von däniken for german television and it's all so... flawed.
*mein kampf ;)
it's a retarded book. it's not as much evil, as it's plain out bad. even as a racist-right wing propaganda-book. there is one chapter where hitler had basically wanked off to animal-metaphors so hard, that i halfway through had no idea anymore what it was about... my personal highlighit of the book is the sentence (freely translated): "A goose will always be a goose, as a fox will always be a fox." - i get what he wants to say, but even in context, thats just... elementary school level prose. you could change the author, rename it ramblings of a mad-men and nobody would propably notice which book it is (there are chapters, that simply end with "... et cetera", he compares the aryan uber-race to working horses, it's all so fundamentally lazily bad).
Also: I disagree with the notion that the kapital is an evil book (if books can be evil is a different question...), or that you could compare it to mein kampf. one is the theoretical approach to the hows and whys of the working class getting shafted in a capitalist society, while the other is a long metaphorical explanation of a racist ideology. thats fundamentally different. and while the kapital is one source for the foundation of socialist ideologies, the book itself does not perpetuate those ideologies. it's long and boring and from time to time incredibly naive (which i assign to it being a child of it's time) and people don't have to read it. thats the beauty of capitalist critique, you don't have to have any idea whats going on, to understand that cambodian women sewing footballs together for a mothly salary, you and i would be insulted by as a daily salary, while not being allowed to take a piss-break is something that is inherently wrong and that there should be a system in place that prevents such things. instead our financial system incentivises it.