"The consequences for theft should include that the profit you made off of the theft is taken away."

That seems very reasonable. Otherwise, stealing money, lending it out for interest, and then returning the stolen money while keeping the interest would be a viable way to earn money.

"The cost of building a company on theft should be the company itself."

Also seems reasonable, because it is the same rule applied to AI companies.

I'd say leave 20% for the VCs and split the other 80% of Anthropic stock among the authors of affected books. That would surely discourage similar behavior in the future.