The economic relationship that has developed between Mexico and the US has been one of mutual advantage. It has evolved as a free competitive market and bears all the hallmarks of efficiency that Adam Smith would expect. Nobody has been coerced, so deals have been made only when both parties benefit.

Often in economics we discuss efficiency, and as a counterpoint we bring up the notion of equity, or fairness. Efficiency and fairness are two separate outcomes, and you rarely get one without sacrificing the other.

If Trump wants fairness, he's going to have to sacrifice efficiency, which will reduce the wealth and well-being of Americans and their trading partners. Trump (among others) needs to understand more of economics. There are very seldom good outcomes, and never efficient outcomes, when the government interferes in markets and distorts prices. What makes sense in business in the micro scale does not work in the macro economy. Trump and America, and us too, I guess, are doomed!