Democracies depends on transparency, accountability and the rule of law. Cyrptocurrencies are fundementally more anarchic than democratic.
I don't think there's any way to do this without giving trust to some central entity without a public blockchain. The public blockchain does become the source of trust, but you need a resource (like energy), that is finite, to secure that network.
However, going back to your original comment, you said we are assuming a zero carbon footprint, so that would assume some future where this trust could be put on a network in a way that would be environmentally sustainable. All I'm saying is that there are more possibilities to this technology than I think you are acknowledging.
Good luck with that.
If that idenifier is unlinked to their identity, how do they cryptographically prove their identity when voting? How do you audit voter rolls?
This is a red herring anyway since I was specifically talking about cryptocurrency. In a purely decentralized cryptocurrency economy, taxation becomes impossible. You can't prevent pseudonymous economic transactions and the existence of privacy orriented cryptocurrenciesean that transactions can always route through that layer to turn that pseudonymity into anonymity.
The entire current use case for cryptocurrencies is literally evading the rule of law (and speculation.)
I have sympathies with anarchic ideals and issues with democratic processes, but please don't try to pass one off as the other.
The entire point is that all institutions in an Authoritarian country are under the control of the authoritarian leader/party.
If the judicial system has independent power and can hold the rulers accountable when the violate the law, it isn't an authoritarian regime.
This is precisely why the US has a system of checks and balances and why the judicial system is an important part of that.