I want to write a reply to everyone, why does this have to be a tree and not a graph.
Facebook makes money off businesses using Facebook to connect to customers. They barely make money directly off customers.
It should be expected that FB will disrupt any digital service. Be that payment (peer-to-peer, customer-to-business), access to digital media (video, image, news, music). What they won't do is replace music studios. They won't replace movie studios. REPLACE is key. They may make entries into content production, by partnership or a standalone venture, but they will not cut out other content providers. FB's network is predicated on access. Cutting off customer access to things they want is a surefire way to lose those customers. Yes, FB can make the terms more onerous for businesses, particularly competitors. But they will suffer if they push it too far and end up backing off or flailing about wildly until they fail. Most likely, they'll back off.
Amazon with Amazon Prime Video has not cut out access to different movie and television studio content just because they make their own. Same with Netflix and Hulu. If they were to do so, the value they provide to consumers would go to near-zero. There'd be no reason to subscribe to their services if you only got their (limited) content. Who wants to spend $8/month for one channel's worth of content anymore when that gets you dozens of channels with a competitor?
Same thing with news, video games, and just about anything else.
If your product is really just acting as a middle man, expect a Google or FB or Amazon to step in and screw you. Yes.
So exist on the outside. Make the games, not the game room. Make the movie, not the theater. Make the music, not the stage. Make something that the middle-man's customers want, let the middle-man do his job of connecting you to those customers (well, contract with them).