"The problems with the flat tax is it retains the IRS and it's 60,000+ page tax code and people will still have taxes deducted from their paychecks. Many people will the IRS is far from fair."
No. The central idea behind the flat tax is that it would eliminate all deductions. The 60,000-page tax code could be reduced to six pages.
I personally prefer a flat tax (15%) than a national sales tax (23%).