Do you have specific issues with the real democratic structures of AES states that you can point to further decentralization helping with? Most AES countries practice a sort of "top-down, from the bottom-up" form of democracy. Essentially, building "rungs" of councils that start at local levels, elect delegates for regional councils, who elect delegates to further levels as necessary. This is both centralized, in that the highest level has the final say, but decentralized in that the higher levels only make decisions pertaining those lower to them, and can change delegates or practice recall elections. It gets more complex than that, obviously, but this seems as decentralized as is practical.
As for your support for "critiquing everything," you sound like a Marxist-Leninist. Criticism and Self-Criticism are core concepts of Marxism-Leninism, and the practice of repeating the dialectical materialist cycle of turning theory into practice to refine theory and refine practice is the core to Marxist-Leninist knowledge. The base of Marxism isn't simply 200 years old, but thousands, it's a cumulative effort of the early materialists, the early dialecticians, Capitalists like Adam Smith and Ricardo, Utopian Socialists like Owen, Dialectical Idealists like Hegel, and more. We keep Marx's ideas (and Lenins, etc) inasmuch as they are still valid, and by our analysis they overwhelmingly are. We also add analysis as it becomes more applied, and we see where earlier Socialists, even Marxists, went wrong.
Does that make sense?