the average chinese person is 5 iq points smarter than the average american, and there are 4x as many of them. for any given headcount, china has more, smarter people to work with. china's system is better at fundamental education. china produces roughly 10x the stem grads as the us. they can afford to employ 3x as many engineers as an american company. their agrarian mindset and ethnic homogeneity means they naturally cooperate with each other. the chinese run larger, smarter, more effective technical teams than is possible in the west.  this explains pretty much everything china is doing to advance themselves.
United States