When will american companies begin to see a downturn i revenues?

A lot of the talk in Europe is now "how can we safely move away from american goods and services?" because, of course, all the uncertainities that the WH is creating will eventually hit american global companies because the trust for the US is gone. US will loose a big chunk of their european markets. Very sad but that is a fact. Maybe they can find new customer elsewhere or is a recession, or depression, around the corner?