If ingesting books into an AI makes Anthropic criminals, then Google et al are also criminals alike for making search indexes of the Internet. Anything published online is equally copyrighted.
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Not only that but all of us are guilty too because I'm positive we've all clicked on search results that contained copyrighted content that was copied without permission. You may not have even known it was such.
Remember: Intent is irrelevant when it comes to copyright infringement! It's not that kind of law.
Intent can guide a judge when they determine damages but that's about it.