There are four reasons I think decentralized marketplaces are inevitable: 1) Throughout history middlemen have suffered a common fate. They get squeezed out at every opportunity. We have a chance to cut out the rent-seeking middlemen, with revolutionary new business models that allow fees to go to ~zero. 2) Blockchain technology gives us a censorship resistance. Not only from governments that like to ban certain type…
In one corner of the web, I hear people being mad when Twitter doesn't ban the POTUS. And on the opposite side I hear you complaining about centralization. I can't somehow get around both of these angry voices operating at the same time (even maybe by the same people). Do we want a centralized system at the end, or a decentralized permisionless system with all the nasty things it entails? For me, I don't know. I lean toward preferring centralized systems. I rather embrace the devil I know.
Not sure, why you are so in love with decentralization. Are you sure we really want it? It's not all roses and flowers with decentralized systems.