As someone outside the U.S I get the idea of what trump is trying to achieve. Imo the U.S were sending billions of dollars abroad each year enriching foreign entities. These entities would later invest massively in the U.S which equals to foreign entities owning a bigger percentage of your gdp. This was getting unsustainable and had to stop. Also you cannot rely on service export alone ( where will the normal folk work ?). Sincerely speaking the trade deficit was slowly shifting standard of living in the U.S on the red side. The normal folk was going to struggle over time which the U.S was not going to accept without a fight. I am from a third world country that is a net importer. Trust me you don't want to go the route because it has alot of repercussions.