I'm not sure I understand how this is self-evident. The closest equivalent I can see would be a human who looks at many pieces of art to understand:
- What is art and what is just scribbles or splatter?
- What is good and what isn't?
- What different styles are possible?
Then the human goes and creates their own piece.
It turns out, the legal solution is to evaluate each piece individually rather than the process. And, within that, the court has settled on "if it looks like a duck and it quacks like a duck..." which is where the subconscious copying presumably comes in.
I don't know where courts will go. The new challenge is AI can generate "potentially infringing" work at a much higher rate than humans, but that's really about it. I'd be surprised if it gets treated materially different than human-created works.