If they paid for CDs, if they paid for the books that they trained on, if they paid for the videos they trained on, then they can do what they want with it. Buying is owning, as far as I'm concerned. Unfortunately, US copyright law doesn't see it that way, And arguing that is pointless.
The crux of the matter is that they're not paying, and trying to scam their way out of it by calling what they do free use, transformative, when it's not. Free use is for academics, critics, and artists. Gen AI is not art, Art requires intention.
Welp, time to ban hammers. Clearly too dangerous for law abiding citizens.