How does PoS solves anything when people will just stake on exchanges so that it literally replicates the current financial system with central banks and permis

How does PoS solves anything when people will just stake on exchanges so that it literally replicates the current financial system with central banks and permissioned cartels? How new PoS coins will be generated and distributed? The stock has to be generated somehow right? How does this not resemble a central bank? This is an honest question. It looks like PoS is a full circle towards the same centralized system we have today. Please correct me if I'm wrong.