> I want a separation between the streaming platform companies and the content making companies, so that the streaming companies can compete on making a better platform/service and the content companies compete on making better content.
Exactly the correct solution.
We did something similar with movie theaters and film studios for decades, up until a couple years ago. Same sort of problem, same solution should work.
Not only movie theaters, but also movie rental and selling of VHS tapes/DVDs etc.
One could go to the favorite department store and get movies from all studios right next to each other, sorted by genre or title or similar.