I hear you loud and clear. Look from a systemic viewpoint.

Texts in the hands of people can have a great power at influencing the behaviour of their readers. When the author and readers are strongly prone to certain thoughts and actions as a result of a particular book, then short of education, banning a text may be an effective thing to do to avert a particular reality from occurring that a text may propose.

The fact that books are inanimate objects makes censorship possible in this way, rather than putting someone in prison. Sometimes people lose their freewill and are drawn to books... and meglomaniacs.