Yes, scale matters, a lot. I can feed my neighbor some rycin and I'm a murderer. If I poison the state's water supply with rycin and millions die, I'm not just a murderer any more. I'm now a terrorist and an entirely new set of laws apply to me. Same with blowing up my neighbors barn vs blowing up a large building. Scale matters and these "what's the difference except the scale" comments seem unconsidered or naive to me.

The difference is scale AND that META does it for profit, violating plenty of licensing terms in the process as well.

the laundering is training AI with the stolen data

they don't sell the data directly, but use it to train software that they use as part of their product

if they want to make the library argument, they should have to manually visit and scan library data like everyone else... otherwise I should be available to access the entirety of my local library remotely without restriction