I think the problem is that all the companies involved (Apple, Microsoft, Google etc) are American; if the products of one American company are banned somewhere

I think the problem is that all the companies involved (Apple, Microsoft, Google etc) are American; if the products of one American company are banned somewhere, another American company will invariably benefit. I think if an American companies products were being banned in the US to the benefit of a non-US company, only then will US law-makers start raising their eyebrows.