As for the Chinese government's massive spending and subsidization of key industries, it's largely due to being free of the particular ideological constraints which force the US government to entrust everything to the market (except the military industry) which has predictably led to brittleness and vulnerability.
The American approach does resemble the Chinese one in a sense. Whereas the Chinese government prefers to directly subsidize e.g. semiconductors, the US government pours unfathomable quantities of capital into a military capable of dissuading any country from capitalizing on the US's dependency on any of their industries. When this approach breaks down, as in the case of China, things tend to get very dicey.