On: We Tracked a Shipment of Rare Books. It Ended at an Amazon AI Training Facility

Weeding (the library term of art for selecting works for deacquisition) is a very import part of collection management. It's actually regionally and nationally coordinated so the interlibary loan network does not throw away the last copies.

https://cdlib.org/west/ https://papr.crl.edu https://eastlibraries.org

You're fortunate if that's the case for where you live.

In the UK weeding is at the discretion of the Branch Librarian. Books I checked out 15 years ago have now vanished from the system.

UK has a shared print program

http://ukpbc.uk