Your example is faulty. If you upload an illegal copy of a book and I read it then tell people all about it, I am not committing copyright infringement
If you use that illegal copy to create a work, then your copy infringes copyright (unless it falls under fair use). LLMs don’t count as people in any legal sense, and training them doesn’t have a legal status comparable to a real person reading books.
Your example is faulty. If you upload an illegal copy of a book and I read it then tell people all about it, I am not committing copyright infringement
If you use that illegal copy to create a work, then your copy infringes copyright (unless it falls under fair use). LLMs don’t count as people in any legal sense, and training them doesn’t have a legal status comparable to a real person reading books.