How would cryptocurrency free us from financial tyranny? At some scale finance becomes a state affair, and regulated by law backed by a monopoly on violence. Or, otherwise, you end up with crypto-warlords with private military companies. In neither sense would the average user be meaningfully "free"; it seems like you're replacing democratic checks-and-balances with harder-to-regulate digital capital, which is "freedom" only to the super-rich.
It's like somebody at the bottom of the Ponzi scheme defending it to death because someday, maybe, just maybe, he'll rise to the top...