Obviously some fairy reputable organisations and individuals are moderately confident that there isn't otherwise they wouldn't have done it.
If my parrot recites your song after hearing my alleged infringement, I record its performance and post it on YouTube is that infringement?
Last one, if I use the song from your website to train an song recognition AI is that infringement?
"Training a neural network" is an implementation detail. These companies accessed millions of copyrighted works, encoded them such that the copyright was unenforcable, then sell the output of that transformation.
If my parrot recites your song after hearing it and I record that and upload to YouTube. I've violated your copyright.
If a big company does the same(runs the song through a non-human process, then sells the output) I believe they're blatantly infringing copyright.
Maybe it's a mass delusion but that feels like a stretch.
Also your wording makes this sound entirely like a sinister conspiracy or cash grab. Many people think this is simply a worthy pursuit and the right direction to be looking at the moment.
I don't deny that this might be a worthy pursuit or the right direction to be looking, or that that's the reason some people are in it. I just question the motivations of a private company valued at $10b which is going to have a lot more control over the direction of the industry than those passionate individuals.