The problem with that is taxes aren't ringfenced so road taxes don't necessarily go to road maintenance.

That is the problem of corruption and centralized state budgets, and not a direct tax, @deirdyweirdy. We have to make a difference between good and bad things, because generalization like ‘all taxes are immoral’ usually leads to even greater mistakes.

It is not immoral to tax vehicle owners for using road infrastructure. You don’t drive, you don’t pay. It would be immoral to tax me, who does not have a car, to pay for the road infrastructure. So, you have to know which taxes are immoral, and which are not. Then we can start the decentralization of the State and reorganizing the idea of a ‘State’ towards the level of humanity.