Keep going, Arch, this is entertaining.

I've always loved watching you argue with how good you are at it.
I wasn't talking about weapons and stuff. I was talking about real power in every aspect, diplomacy, economy, interventions throughout the world without anyone's permission, companies that operate in literally every country in the world, etc. China has growing economy which can collapse when their cheap labor force become not so cheap anymore. Huge land and a new rocket system doesn't make you considerable world power. Also, I don't think anyone gives a **** what China thinks when someone wants to do something wherever in the world which is not the case with the US.
Wasn't it Russia and China that vetoed any conflict with Syria? Even states as rich as Qatar wanted to pledge their entire military to invade it. The United States, Russia, and China are the current superpowers.
Russia, for example, was the one who warned the United States of the missiles being built in Libya, Syria, and North Korea, because Russia has a pretty big intelligence network. Russia, as the biggest country, also has a lot of natural resources and room for expansion. China is second largest and also has a lot of natural resources, although not quite as much room for expansion if you consider issues like the Gobi Desert. All three play a pretty big role even if you don't hear about the east's role as much. China also has a totalitarian Supreme Leader, so that should give them an edge if he is any good (though most leaders in general suck.)
If you want to say that China's economy will collapse when their cheap labour is no longer available, then so will the United States' economy, considering how closely linked they are.