The consequences might be like this (in addition to many other possible forms):

Previously, my little factory spent 100% of the budget for component x and component y on buying from American suppliers (quality and price are both very good).

But going forward, we plan to spend 70% to buy from Americans, 20% from other countries, and 10% to fund demestic research, and we will reduce the 70% part as soon as we can manage.

You can imagine if multiplying our small adjustment by the actions of hundreds of thousands of similar businesses around the world who are watching closely what's going on recently, then the interests of American businesses will probably be severely affected.

Countries around the world will realize that it is not safe to trust in the US as a player in the global market. This may not seem big initially, but market barriers around technology will start to crop up everywhere in developed nations.