Originally posted by @ashiitaka
I'm sure many Americans dream that China will not be a success so that "Pax" Americana will never end.
The Chinese and US economies are interwoven. China is not a political threat to the US and its production oriented economy is tied to American consumption. There's a good reason China refuses to float its currency - a spike in the yuan and corresponding decrease in outsourcing to China would be catastrophic to China.
It's axiomatic that as China gets richer, its poorer neighbors will take over some of its low end production and sooner or later, they're going to have to adapt to being a mid-level economy rather than a low-end producer. The US has no reason to root for this transition to fail. The falling apart of the world's largest country could drag the world into economic turmoil.
Politically, China doesn't appear to have designs on conflicting with US interests except perhaps as regards North Korea and Taiwan.
People looking at the US and China a competitors for holder of world hegemony are obsessed with anachronistic analogies. It's not 1805 anymore and the world isn't about empire building and natural resource harvesting anymore.