Regardless, you really should learn the difference between "theft", "copyright violation", and "training", because they are different things.
If I read a bunch of books, learn from the authors' use of word phrasing, then pick one of Vonnegut's 8 Story Shapes, and make a book in some author's style, it's not illegal. I don't see why I can't have a computer do that for me.
None of this really matters. If you feel strongly about it, you should go bribe congress to make a law. Because the existing laws about theft and copyright don't cover "learning from billions of examples and interpolating or extrapolating from them".