Two things can be true at the same time:
1. copyright is a bit broken and needs reforms
2. the way "AI" can only be trained by complete disregarding copyright is unacceptable

"But you used to criticise copyright" is not the gotcha you might think it is.

EDIT: "a bit broken" is tongue in cheek. Of course we massively need to rethink what the purpose of copyright is and how we can ensure that society and the people in it have access to culture to built upon while ensuring people can have good lives while creating and contributing. (The answer is communism of course, but that's a bigger conversation)