Yeah viewing devices would all have to share hosting duties. I’m sure it could work, and popular/viral videos would serve well as the demand would be spread across the most devices as well.
There would still have to be dedicated seed servers for long tail content though I imagine.
Oooo yeah, sell it as offline/private social medial to the preppers. If we can make sure the algorithms gently steer people away from extremism over time, I think we could save the world.