Taxation is obsolete as a revenue mechanism for a monetary sovereign. The only value of taxation is to discourage an activity. To discourage the generation of income is profoundly counterproductive.
I am more than happy to be able to access to healthcare, school, good infrastructure thanks to my taxes – but I'm European, so maybe it's more about how the US system uses your taxes instead of the taxes itself.
In the Euro zone, nations are not monetary sovereigns.