Yeah agreed but any attempt at nationwide decentralisation will require some implausible things to happen, and I don't think we'll get what we want.
Any decentralized movement is going to trigger the attention of governments who will attempt a centralized pseudo decentralised system where they can say 'I promise it will be decentralized if you vote for me!' and it just turns out to be a system that can shaft us all further.
So it really has to be a multi-generational transition. Tbh I don't expect it in my lifetime unless a HUGE record crash happens plummeting most of civilisation into almost Mad Max territory.