That's not how the first sale doctrine works, nor is it how it has ever worked.
In a nutshell: the first sale doctrine merely means that if someone comes into legitimate possession of a physical good containing IP, they are free to sell or otherwise exploit the physical good without requiring a license for the IP contained therein.
Crucially, the first sale doctrine does not extend to exploiting the IP itself, so if the IP is separated from the physical good (such as by recording or scanning a copy), the first sale doctrine no longer applies.
The first sale doctrine does not apply at all to library lending programs. Libraries providing digital lending pursuant to explicit licenses provided by publishers for digital lending.
In a nutshell: the first sale doctrine merely means that if someone comes into legitimate possession of a physical good containing IP, they are free to sell or otherwise exploit the physical good without requiring a license for the IP contained therein.
Crucially, the first sale doctrine does not extend to exploiting the IP itself, so if the IP is separated from the physical good (such as by recording or scanning a copy), the first sale doctrine no longer applies.
The first sale doctrine does not apply at all to library lending programs. Libraries providing digital lending pursuant to explicit licenses provided by publishers for digital lending.