Inevitability seems to favor CENTRALIZATION.

putting it in bold, doesn't make it true :)

For the first time in the history of humanity, there is the possibility that ordinary people are able to communicate, collaborate and organize themselves at scale. Centralization might be the default, but it doesn't have to be centralization of the organization, it can be centralization of the entire community, and all the nuance and variation it contains.

I see it as more of an alignment problem up until this point and going forward, we will increasingly have access to tools that have never existed before. Using the past to predict that the future will be identical uses the assumption that nothing has changed in the environment and, everything changes.