tax isn't about raising money. we have fiat money the government can print as much as it wants. taxation is about keeping aggregate demand for fiat dollars high.
On the margin, people work for their after tax income. If taxes went away, employers would pay employees the same amount as their current after-tax income -- why would they pay more than necessary to provoke someone to work?
Remember dude, EVERY CIVILIZATION HAS HAD TAXES. Rome had taxes. Ancient Mesopotamia had taxes. TAX PREDATE AMERICA. Tax predate fiat currency. Ergo, taxes are not about controlling the money supply.