You really don't understand how things work. Read post #19 again - and more slowly.
Market forces work on foreign goods too - and on new vs. used things, too. And you also need to understand that US goods will have the costs of the income tax removed from their prices making them more attractive overseas.
Oh screw you. Just about everything I buy says "Made in China". And if every imported DVD player goes up 15%, where I go to buy a cheaper domestic one? That and thousands of other products that are no longer "Made in the USA".
So don't give me any of your crap about "competitive pressures" and "market forces". Get your head out of your theoretical, classroom a$$ and into the real world.
"And you also need to understand that US goods will have the costs of the income tax removed from their prices making them more attractive overseas."
Oh, goody goody for the foreigners. I happen to live here, not overseas.
Oh, and when our (very few) domestic manufacturers are undercutting foreign imports by 15%, you can then expect their governments to retaliate with a 15% import tariff on ours. Oops. There went our "attractive" price.