Taxes aren't necessary
I'm curious how that will work. We have a lot of general services that need to be paid for. Garbage and waste disposal, roadwork, police and military, etc. I think a lot of these need to be handled by a neutral organization [government]. Since these are needed by the people it is logical that the people also pay for it. I believe the problem is in how the funds are handles. Apart from the big discrepancy in allocating funds, a lot of the money are stolen by corrupt politicians.
It would work something like a DAO, such as in Splinterlands or Hive. Ways to manage governance, without requiring a central authority. These would become "centralized" while in operation, but could be defunded on the fly, if they are superseded or become harmful.
That would be interesting. I don't know if it will be more effective than what we have now.