China have 4x the population (both countries are essentially not making baby, US keep population growth positive via immigration), China have 5x-10x industrial robotics, 100x the ship building capacity, 3x car production, 10x steel production, adjust by PPP China GDP is 1.25x higher than USA, 2x electricity generation. this is not even a contest, it is like smacking a retarded baby in the head.
USA is closer to Russia, than with China.
It is so sad with western media, they will only report industrial robotic by "density" because that is the only way to rank china lower than USA/japan/korea.