Of course, it won't work.
OTOH, Skype and Bittorrent had successful models for scaling up: People were configured by default to add their bandwidth to the pool. In bittorrent's case, your throughput suffered if you were stingy about contributing.
I2P is probably the closest networking layer there is to combining the goals of Tor with the methods of Skype and bittorrent. It is both highly decentralized and onion-like, and has been steadily improving for well over a decade now. If you happen to have a TAILS disc, its included. However, its not designed to access the regular Internet so much as replace it.