America’s Golden Age has resulted from global interaction. It seems to me that Trump’s isolationist policies could bring this period of prosperity to an abrupt end.
US based corporations like United Fruit Company and Standard Oil became global power houses by exploiting – you might even say plundering – the resources of foreign countries.
And the agreement to use the US dollar as the world’s reserve currency has given the American financial system special advantages.
Trade agreements have been good and bad for America, but on balance, I would say they have been more good than bad.