Maybe begging the question here. If a physical book is rare, doesn't that mean it wasn't available to many in the first place? It seems to me providing its knowledge via LLM, even if it's a private company, benefits more people than if it were sitting in a library somewhere maybe read by a few, or worse in some private collector's set. I can't help feeling there's some hypocrisy or something here with this call to be…
I think is the scanning for profit and destroying them in the process that angries people. If they we’re just kept where they were you can always say they’ll eventually be scanned or have that potential. I do believe the issue is a bit overblown but the core of it sounds reasonable to me.
Never mind that it's the 200th copy of some 1950's romance novel that nobody will ever care about, every time a library prunes its collection there is outrage.