I mean, they weren't ALL that to begin with, but pretty much since covid started, facebook has gotten plain stupid.. Fact checkers that Zuckerberg even admits aren't legit, all the bannings and facebook jail for posting stuff they don't agree with.. More than likely, in your case, facebook caught a word or two that tripped their "this must be censored" censor and, even tho its a BOOK, their computers think its a weapon and therefore must not be allowed.. You'd THINK a fact checker could take a look, but, as we've seen, any time a "fact checker" claims something is false, you can pretty well rest assured its true..
Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..