umm i don't think so, during the financial crisis china passed a $600 BILLION dollar stimulus package for a 4.5 trillion dollar economy, that's a whopping 13% of GDP. compared to the $800 billion dollar stimulus package passed here which was 5% of GDP. idk about you but that sure could mean if there is a crisis here china will be screwed.
also most of the innovation happens here, i know a lot of people from china are smart...but they don't innovate...i don't know why maybe because our system is designed for innovation.
Also there's an old saying, if you owe the bank $100 that's your problem, if you owe the bank $2 trillion that's the banks problem. i honestly don't think our leadership is stupid.
exports are 33% of ur economy, and i'm pretty sure another 33% of your economy depends on the industries that do the exporting (trucking, mining, etc...) if no one buys ur crap then ur screwed.
also 10% growth for such a long time seems unsustainable (a good example of this would be Japan and the 4 Asian Tigers) we all know what happened there...
also a lot of china's economy is based on building stuff like bridges, skyscrapers, cities, train systems, etc...but if you build stuff and no one uses it then what will u do? keep building more bridges to nowhere? what happens when the infrastructure (power, water, airports, rail, roads, sewage, etc...) is fully developed? what will u do then, not to mention rising cost of labor and most housing units built there are deserted and no one can afford them with the sky high real estate market.
i know we have our share of problems but remember we can print dollars u can't, also another USSR wont happen here due to the fact that we are too important in the world (USSR wasn't a big customer of anything).