Nobody's said it in this thread so I'll drop it here where you ask "Why save physical books?"—

The problem isn't with morals or copyright. What we're up in arms about is case law. Past rulings have implied that destruction of books significantly contributes to the process being "transformative". This encourages companies to destroy the books. I think this is really dumb.

Why save physical books? It's because the reason to destroy them isn't good. If you think there's too many bad books out there, that's a different argument. Maybe your fight is against consumerism, I don't know.