Just like the same people who believe corporations pay taxes?
ALL taxes, (most hidden within the price of an item) will be replaced with the fair tax.
ALL withholding from paychecks will cease! SO, even IF your prediction of mfgrs. not passing their savings along to the consumer is true, consumers will have 30% more in their paycheck anyway.
(BTW, if you believe mfgrs. WON'T pass the savings, YOU are smoking something stronger than RJR or Philip-Morris markets. Every mfgr. wants as much market share as they can get, and as soon as one HINTS of a price cut, the rest will match or beat it. GUARANTEED!
But it's not guaranteed.
There are arguments for it happening and there are arguments against it happening.
It can only be guaranteed if it is required in the legislation that is actually passed.