> Physical libraries with the limitations of physical transfer strike are a reasonable balance. A global digital pool with instantaneous and unlimited transfer of non-degradable goods does not strike a reasonable balance.

That's a more interesting argument. I think it's valid, abstractly at least.

> Copyright strikes a balance of rights between content creators/owners and content consumers

Originally sought to, perhaps. However copyright has devolved into almost entirely serving the interests of the transferred owner who are overwhelmingly huge publishers.

It makes sense to me that a digital library poses an existential threat to the business model of those large publishers who have gradually moved away from obtaining or encouraging the creation of new original works (the original intention of copyright) to reselling and repackaging existing content over and over again. This is why things like DRM exist, not to prevent piracy, but one one many mechanisms serving this strategy by controlling how ordinary consumers can consume what they "bought", when, where, on what, for how long... so many types of restrictions all serving to extract the maximum economic return for each original piece of work they own - A library completely undermines that strategy, because it necessarily removes most of those mechanisms to function.

The constitution explicitly states that copyright exists "to promote the progress of science and the useful arts". It's not meant to be about serving the financial interests of content owners except insofar as that also benefits society.

That's where the brainwashing comes in: good for society === makes rich people richer

What's missing is a requirement that any digitally published works must also be made available as physical media. Content owners can't keep their media out of public libraries by only publishing digitally. Otherwise, libraries need to be able to lend digital works

> Copyright strikes a balance of rights between content creators/owners and content consumers.

Not at all. Creators have no ihnerent rights that need to be balanced. Copyright is only granted with the argument that encouraging creation benefits society. That is the only argument for its existence.