Not entirely sure how you’d make the economics of hosting endless video files work without great big piles of money
You’re absolutely right, which is why BitTorrent never managed to take off. Totally unviable, doesn’t work at all, and definitely isn’t the technology underpinning federated video services like PeerTube.
Edit: WTF? Why are you people denying the reality in front of your face? BitTorrent works and distributing video peer-to-peer is a solved problem. I do not understand this defeatist religious insistence that Video Must Cost Money.
At one point BitTorrent/P2P was responsible for something like 30-40% of all global internet traffic.
The thing is the protocol never really developed beyond some useful, but minor evolutionary updates.