I assume that the cost of the parts are insignificant compared to the cost of R&D and manufacturing labour costs, which AFAIK are all on US soil. Even if a car

I assume that the cost of the parts are insignificant compared to the cost of R&D and manufacturing labour costs, which AFAIK are all on US soil. Even if a car is sold to a Chinese customer, the money they pay and the money the gov pays is creating more jobs that it would have otherwise (and also lining Musk's back pocket).