Rest assured that my handle was not just randomly chosen; it does have a disctinct meaning. But I digress...
I find it ironic that the USA, for all their military might, is really at the mercy of the Chinese. If the Chinese decide to pick up the phone tomorrow and move all their money out of US T-bills into Euros, we'll have a global recession of note. The US economy might literally collapse.
Unfortunately this ailing dinosaur would probably be willing to nuke anybody it sees fit, should things ever escalate to that point. It is really in everybody's best interest to keep the dollar artificially propped up. How long this unsustainable can continue is an open question, though. Interesting times.
Unfortunately for you, the US is not at the mercy of the CHinese. The factories which churn out product for US markets were paid for with US dollars, in fact the US could turn off the tap and China would sink in minutes. However US investements in China would be jeopardised. If the west stops buying cheap shoddy Chinese products, China will have a major problem. The US will recover, China will not, in fact what may happen is a civil war where the Commie run government is overthrown in a mass uprising as the economy plummets or the government cracks down hard making Tiannamen Square look like a picnic.
A cheap Dollar will also mean that US will be able to export much more than they are doing now.
In fact I'm sure the Yanks WANT a devalued Dollar at the moment, that's why they are where they are. Just think about it, most of the businesses around the world are OWNED by US based corporations, even in SA.
US is also self-sufficient. They can survive, and very well without the rest of the world, after all virtually all IP (miliary, tech, entertainment, science, medicine, pharmacology) is developed in the US and exported from there,
by comparison Europe and Japan do not do nearly as much R&D as
the US.
I doubt the US will collapse anytime soon, in fact remember that the 1929 depression in the US caused a global depression around the world, and not the other way around, the Yanks were the first to recover too.