The FairTax proposal improved on this by providing a rebate to everyone to cover tax for essentials. It also removed taxation on businesses which would likely cause prices to come down. There were many benefits and their research showed that overall tax burden would actually be less for the lower & middle class and higher for upper class (which avoids income tax anyways). Unfortunately it was too radical I believe, there's no way the U.S. would make that big of a leap.
It might still be slightly regressive, but that's not such a bad thing when overall tax burden would be reduced.
It might still be slightly regressive, but that's not such a bad thing when overall tax burden would be reduced.