Not really, in part for sure but it's not like we're not capable of shifting away from that. China also has plenty of competition for cheap labor and low regulation these days and we have no shortage of industry and natural resources we can tap if needed. China on the other hand is desperate as it is for natural resources, power sources, etc. The last 30 years of China spending trillions internally and abroad to over inflate their economy on paper and overvalue their currency has left them in much worse shape than the US is in. All the fake infrastructure projects they cheaped out on building are falling apart already and they don't have the money to band aid everything, let alone replacements. They're also getting ready to head into a huge labor shortage and population crisis thanks to the One Child Policy coming home to roost.