That's an issue Peertube [0] is trying to solve by having viewers contribute back some bandwidth via webtorrent.
If you want your media to be readily available despite your limited bandwidth the answer is torrent. If you still want to have control on who does what, then you're out of luck.
True. Unfortunately, there's another problem with p2p: https://news.ycombinator.com/item?id=19937861.
It's the transfer and bandwidth that are the problem. There isn't really such a thing as "unlimited transfer" (there's a hidden limit past which they'll rate-limit you, and kindly ask to stop or pay more). Moreover, once your video gets somewhat popular, you'll hit bandwidth issues. Given how popularity on the Internet seems to happen in spikes, this will likely severely limit the reach of your video.
People are also spoiled by big video services with unlimited budgets and CDNs all around the world.