I would support a flat tax but not a national sales tax. The flat tax would have to be something less than 15% and we would have to safeguard the rate by working into law some way to prevent the crooked bastids in Congress from raising it every year. 30% of my hard-earned income is just to darn much. That said, we will never get the criminals in government to agree to anything "fair". The only way we will get out from under their thumb is if we revolt. (Not necessarily armed revolt - don't get me wrong here!)
The fairness of the "progressive" tax is simply self-evident to some people--namely, the vast majority. It will never be permanently got rid of.
"I pay taxes like I would pay "protection money" to the mob ; so they won't come and break my legs or in the case of the IRS put me in the can and take away my house. There is very little difference between organized crime and government theft through taxation. "
A flat tax is still an income tax. It does not get rid of the IRS. You (and every other taxpayer) would continue to pay "protection money" to the IRS mob under the Flat Income Tax.
OTOH, the National Retail Sales Tax will abolish the IRS. You will no longer pay "protection money."
Here is the logic: You will pay taxes in accordance with how much you consume, not how much you earn. You will be in control of how much you consume. Therefore, you will be in control of the amount of taxes you pay:
Not the Congress.
Not the IRS.
You!
Actually, that's the only way it can be done. And it won't.