Making America great and relaxed again. Cut off from the world and with diminished numbers of enthusiastic international business people bringing money and customers to the US the economy will suffer. Perhaps Americans should embrace the Amish life style? Plant a garden and live life without any connection to the crazy media world?
But since when there is a will there is a way, government sponsored terrorists will simply use private Jet Planes. They are terrorists and they are funded, ironically by countries who have often held long and close relationships with the US government. Europeans are not on the top lists of global terrorists. They are too busy working, drinking beer at local festivals and going to the opera.
As international business people are forced to use public cloud systems, cyber crime will rise to an all time high. Which is a risk that many companies will not wish to deal with.
When computer illiterate people are in charge this may seem like a good idea, since they are completely unaware of the unintended consequences.
As imports are strangled and business customers can’t shop in the US anymore in a convenient way, both B2B and consumer prices will skyrocket. It may create local jobs for some of the basics. There is always perfect balance in the world. Gardening equipment will go up as people have to grow their own food, due to loss of income.
Business internationally will be forced to reorient and Jean-Claude Juncker who recently got in trouble for stating that the “English language” is loosing its importance – just may become right with the help of some computer illiterate leaderships around the world.
It probably would be less costly and much more effective to just have a public relations campaign that promotes: “Buy Made in the USA” or “Assembled in the USA” products.
The fall out of such a decision will negatively affect the travel industry, tech industry, most exports, and it will practically force nations around the world to deal with each other and forgo business with the US, until this country’s business leadership comes to their senses. While corporations are people and they can clearly sponsor anyone into power, they have chosen some real doozies lately. They have eroded the middle class to an all time low since World War II.
The people in charge seem not to realize that trade is a two-way street. You cut off one way and you automatically cut off the other way as well. There are a lot of nations who will love to step in to fill the void. US lifestyles will suffer but international business people from around the world will always find a place to their investment dollars.
Out of 7,347,000,000 there are only about 321,000,000 Americans and only about 58 Million Brits. That means that over 7 Billion people and their business élites are not controlled by the US government. The reason why the US and England were so successful in the past, is that they were fairminded business people who wanted to create mutually beneficial financial relationships. Clearly that is no longer celebrated or even supported by the US government, except in genuinely international businesses like Space Travel and the development of life in space. NASA is entering into more and more genuinely international relationships as the support in the US is diminishing since several administrations in a row.
International business execs are not controlled by anyone, since the can simply move to another country that is more supportive of their business ventures. I imagine this will be great news for Canada, Scandinavia, Brasil, and of course China, Vietnam, Japan, and India, and even Russia and the ex-Soviet States as the Silk Road gains importance. Enterprising Europeans will look elsewhere for business that is enjoyable and profitable. Theresa May was annoyed when Jean-Claude Juncker snubbed her about the English language loosing importance. And he is often quite arrogant! But unfortunately lately his arrogance is not entirely unreasonable and occasionally even understandable.
famed 
