DRM is relevant to the legal redistribution because that is part of the terms of their license agreement and for no other reason. Their entire lending practice of digital copies is legal because, and only because, they have contracts that specifically determine how they may do so.
It does not in any way alter the nature of blatant illegal copies. It does not make every loan not multiple distinct illegal copies.
I’m actively opposing people telling insane, completely unhinged lies that aren’t even loosely connected to reality to validate a position that every single person with a shred of common sense knew was going to get laughed out of court the day they did it and did get laughed out of court. If you tried this case a million times, Internet Archive wouldn’t have a chance in any of them.
Petition for changes to the law. Don’t lie and pretend the law says what you want it to.