You don’t. There are plenty of legitimate cases for using AI (translation, spell check, summaries, etc.). The solution should be to use AI to categorize all the books and their content, something in the style of Steam-tags, but going even deeper into what is actually in the book and done by machine, as nobody has time to read all those books.
This is kind of the biggest surprise in this recent rise of AI: We got to generation before categorization took of. Even so a lot of the AI work in the last 10 years has been focused on categorizing, nobody has build anything with it, at least not user accessible. Everything is still running on human made categories. The only time you see categorization in action is in the recommendation algorithms of Youtube or TikTok, but the categories that drive them are hidden from the users.