The things being discussed here are literally stuff like the basic technology you are describing. They are only 'investing directly in both side's military pipe

The things being discussed here are literally stuff like the basic technology you are describing. They are only 'investing directly in both side's military pipelines' in the way that investing in Amazon might be because they have the DoD as a customer. I don't think China should ban people from investing in Amazon because it helps the US military.