Because tariffs get rolled into the price of goods and thus HIDDEN from those who ultimately pay them! If we want a SMALLER federal government that is the LAST thing we should wish for!
It's the CONSTITUTIONAL way to raise revenue.
So is the NRST administered by the states and has the added benefit of being COMPLETELY visable to EVERY Tom, Dick and Harry in the country EVERY time they purchase a NEW good or service!
How long do you think it would take for the federal government to begin to shrink under that system?