> Are you implying that these three pillars will be able to produce anywhere near the current amount of content we produce?
Do you think the vast "amount of content we produce" is actually propped up by copyright? Have you ever heard of someone who started their career on YouTube due to copyright? On the contrary, how often have you heard of people stopping their YouTube career due to copyright, or explicitly limiting the content they create? I have only heard of cases of the latter. In fact, the latter partially happened to me.
> How in the world where digital copies are effectively free to copy and infinitum would a creator reap any benefits from that network effect?
You are making an assumption that people should reap (monetary) benefits for creating things. What you are ignoring is that the world where digital copies are effectively free is also the world where original works are insanely cheap as well. In this world, people create regardless of monetary gain.
To make this point: how much money did you make from this comment that you posted? It's covered by copyright, so surely you would not have created it if not for your own benefit.