If we apply this consistently then Netflix shouldn't be earning anything from it at this point either.

The issue being presented is workers not being paid fairly for their labour, while someone else cashes in on it forever. If everyone involved in the production owned it, then everyone involved in the production would continue to be paid a small amount for the rights to it. If this were music a lot of people would say "yes the artists involved in the production of the art should receive royalties".

My take is that if the art is gated and costs people money to access it, then the artists should be receiving that. But, I also fundamentally disagree with gating art whatsoever, all of this content should be free after the initial release run. And all of the services like netflix could combined into one single centralised government archive of entertainment culture anyone can access at any time for any reason for free.