What about a hard fork in bitcoin that sets say 1% of all mined bitcoin and puts it in a pot, to be allocated in a way that is consensus approved in the hard fork (at a minimum; enforcement of transactions and remediation/ disincentives for bad actors). Not foolproof but satoshi wanted to go from 15-30% government spending to 0% which is kind of so beyond what we have evolved to cope with and also means there is no centralised force to combat other centralised forces (eg current governments) other than what people give voluntarily.