Chinese tech giant Huawei’s attempt to make semiconductors without American equipment has generated global headlines as the US-China tech war takes yet another turn. It is one more strong hint – if any were needed – that the US government is in the process of creating a competitor that it won’t be able to control while forcing American companies to abandon a massive market that until now has supported their sales, profits, economies of scale and stock prices. Geopolitics have overridden America’s past devotion to open markets and the situation is not likely to change anytime soon as long as...