Because that's not what IP law is for. IP law was always corporate rent-seeking. None of those arguments about fairly compensating people for their creations or preserving the profit motive were ever being made in good faith. The point was always to force you to pay for something that would be free under natural laws. And I do mean you specifically, because the act of copying information freely was always going to be preserved for them.
Swartz was charged under the CFAA, like most hacking cases, and it clearly applies to the Anthropic and OpenAI cases.
It's not the IP law alone that's the problem, it's the way the legislative and justice systems work. There will always be a law and an interpretation that favor people who can afford to buy them at the cost of those who can't.