Fair trade, according to Adam Smith, wouldn't require a $450 dollar tariff on the boots, or other imported finished products. The tariff required to achieve trade equilibrium would only need to be the difference between the cost of production between the imported and domestically produced item. This would discourage the use of slave labor by one country to wage economic warfare on another country, which is precisely what is happening to the U.S. right now, with the approval of elected politicians of both parties.
Could you explain the difference between a tafiff on goods imported to the US and a quota on the amount a country may export here?