Actually, to some degree I do (think we could exist by relying on voluntary donations) as it was being done before the federal income tax ever became law in 1913!  And the tax for many years from 1913 was about 5%, hardly enough to do too much bureaucratic damage as is done today!   People were far more self-reliant than they are now. 

  And, I do choose places to donate money, time and service!