Appreciate your story Wildrose
A guy that is a lot smarter than me said to me once, "China is our best trading partner in the same way that an abusive boyfriend is the best way to get food on the table. We are their bitch."
China though relies on the US economy to keep buying its stuff though, so keeping us as their benefactor is to their benefit. The issue is that they are slowly moving away from this, trying to get into raw materials more so than rote manufacturing. Between this and opening up better markets elsewhere, they plan to slowly ween themselves off American consumer money.
To add to this, the US consumer has become a very troubled group to base your economy on. Demand is overall pretty poor due to stagnant wages, and our constant boom to bust cycles are scary to them.
The House of Cards won't fall due to China though, IMO. It will fall due to resource collapse, causing banking shocks and freezing of credit....that is what 2008 taught everyone really well; no credit markets = collapse.
I give it more in the neighborhood of three to five years....and it will be the hardest thing humanity has ever gone through. Then, and only then, will the "sustainability crowd" be proven right in what we've been saying for 40 years.
"The soul that does not attempt flight; does not notice its chains."