So the components are all imported from China, then assembled in Mexico. Maybe that's an improvement, and it keeps Chinese brands from establishing themselves, but does it really matter?
Of course some Chinese companies might try to penetrate the US market by manufacturing in North America, and that's already what a lot of foreign (but not Chinese) car companies do. Mazda, Toyota, BMW, etc all have factories in North America.
> Tariffs on steel, aluminium and personal protective equipment – which range from zero to 7.5% – will rise to 25%.