Buying and copying one training manual and distributing it to 1000s of human workers is considered illegal, but somehow scanning one book and sending it to 1000s of distributed training instances is not?

Also, you learning something is different than a model learning it, because a model is not a person. You can learn from a book and sell the skills you gained from it, but you can only be in one place at a time. The model can serve that knowledge to every person on the planet simultaneously. We obviously need new laws since this is a fundamentally different situation.