At this point, I think as a society we need to just say copyright as a concept and law has completely failed and scrap the whole thing.
The 0.01% of powerful copyright cartel publishers get rich while harming 99.99% of people, because we've seen further erosion of fair use rights, absurdly lengthy expansions of copyright to prop up Disney's profits and expansive interpretation of how much control copyright olders have and zero punishment for abuse of DMCA and other things.
Students should be able to learn from books, music, film. So should AI training models.
If there is any ambiguity about this, we should immediately write laws making it clear that training and education of all forms is explicitly allowed under fair use. Ideally, we also send anyone trying to prevent this to the guillotines.