That is why I designed an UNprofitable PoW system. There is no other hope.
Hmm, I can be dense. Unprofitable PoW; seems like it will be pretty hard to get folks to participate. That said, I do run an unprofitable full node without mining. So, maybe we would get some altruistic folks to do it *but* aren't they at risk of being over-taken by bad guys willing to run unprofitably?
The details, incentives, and potential pitfalls are deeper than that and are partially covered in the
Decentralization thread (perhaps start reading from page 20 forward). No offense intended, but I am too weary to repeat again.