Nonsense. No one who buys at retail will be able to purchase and avoid the tax as the "enforcement" is pretty much automatic ... if you want the thing, you pay the tax. What about the millions of self-employed people. What about the millions of foreign transactions. What about the millions of mom and pop retailers. There is nothing automatic about collecting 2 trillion dollars in taxes. It takes a big organization that puts some fear into people to collect that much in taxes.
Not with a tax system as simple and understandable and as transparent as the FairTax. Most of that income tax chaff just goes away - gone with the wind.