It’s the other end of the spectrum from disliking someone because their favorite book is The Grapes of Wrath or A Brave New World. I actually agree with the values expressed in those books, and I can also understand someone not wanting to be friends with me because of it.
But at least if you’re going to have friends with a different philosophy, seems like a better move to reach across to people who believe in community and collaboration over self-interest and individualism. That’s just me, though.
"Someone dropped it off a bridge, hit my abusive step-dad and killed him dead. Soft spot for Ayn Ran ever since, beliefs aside." That's someone I'd want to be friends with.
Yes, a literary work can both be life-changing and not something you agree with.
EG:
I do not at all agree with Marx. Me and others reading his works changed my life irrevocably. Ditto for Hitler.
I was just quoting the actual question in the comment.
Not OP. But I would say the filter is working. If you would treat somebody like an idiot for liking a book you don’t like, I indeed, would want you filtered out of my circle of friends.