I only use it for the free fringe stuff, I would never read a book from the website UI except just to search for a reference. They don't have an app do they?

It's relatively straightforward to rip loaned books from the IA too - if you can't remove the drm you can just download each individual page scan and recompile.

If the court sanctioned IA’s digitization practices and thousands of libraries started digitizing the books in their collections, the entire e-book licensing market would collapse

Sounds great, some of those libraries might scan some of the stuff that Google and IA wont. There's still plenty of books out of copyright with no digital scan, mostly stuff that doesn't give the current politically correct spin on history or science. But then maybe publishers would stop producing ebooks? Or develop some new technology 10 times harder than DRM to crack.

If you own a physical book, you can scan it, just with a phone and an app, very well and efficiently these days - and distribute it how you like. That would be a difficult thing to eliminate.

EDIT there does appear to be an app for reading IA books:

https://play.google.com/store/apps/details?id=org.openlibrary.testing.twa