So several fundamental forces gave us the centralized internet, at least for the time being. Trusting a few players has never given resistance to these forces and so blockchain doesn't alter the equilibrium.

What are the forces pushing for blockchain? Some will say greed, and of course at an individual level greed has something to do with it, but greed has always been there. Greed is part of humanity. What is specific to blockchain? Maybe just the desire for decentralization.