Because other countries are stupid. That is why America is traditionally an exceptional country. America has been the exception to the rule. Most of the world is socialist or totalitarian which are stupid economic/political systems. The fact is most countries are economically stupid. And tariffs are a mild, but good, good example. Tariffs don't hurt anyone except the country putting up the tariffs. They are like shooting yourself in the foot.
Anyway, thank God Trump is on the right track here becsue what he is attacking are the DIRECT root causes of business leaving America. Tariffs do nothing about the root causes and only make matters worse.
Tariffs made America an industrial power and funded the govt until 1913. So you would be wrong- again. Buzz off globalist swine.