I couldn't help but wonder if the guy made it out to his car after the show without being body tackled by the IRS.
The idea being that when Government get's too greedy it hurts everyone (proportionally) the same ammount and prompts a unified outcry.
As opposed to the divide and conquer system we have now, where the rich scream and no one listens because their ox is being left alone.
As far as consumption taxes go, look at Australia and their "tampon" tax for a good example of what will happen the day after a Consumption tax is implemented.
Some group will come in and try to use the tax cde to price "incorrect" products out of reach and reward "correct" purchases with lower tax rates.