This is obviously hyperbolic, but it was a very poor choice of words.
It also relies on an assumption - that AI will become a substitute for buying books - that I think is likely untrue. You’ve been able to easily gain a surface-level understanding of anything for free online for decades, and for that matter, you’ve been able to easily pirate any book for decades! Hasn’t stopped people from buying books, or going to college, or doing any number of other expensive things that are technically unnecessary if the goal is just to gain information.