Here's the thing: fair use has a set of real, specific, legal meanings, and in none of them is ingesting and indexing the *entire work* considered fair. We give leeway to human beings because we don't scale - but the LLM has no such hinderance. I have yet to hear a compelling legal argument why it might be fair, either - indeed, the opposite seems true. If you want to abolish copyright, that's a different discussion...