Copyright law is intended to prevent people from stealing the revenue stream from someone else's work by copying and distributing that work in cases where the original is difficult and expensive to create, but easy to make copies of once created. How does an LLM do this? What copies of copyrighted work do they distribute? Whose revenue stream are they taking with this action?

I believe that all the copyright suits against AI companies will be total failures because I can't come up with a answer to any of those questions.