China holds less than 2% of our debt. China liquidating will have no material impact on the value of our debt.The decline of the purchasing power of the dollar relative to CPI, particularly after the US left the gold standard in 1971 has accelarted dramatically. China and the Brics are investing heavily in gold to reduce their dependency on the USD. We will see rapidly increasing trade outside the USD and the US- European Swift system. I have read that China is reducing US bond exposure in as orderly manner as possible as the Federal Reserve is rapidly building their US Bond holdings. Very difficult to project all of the fall out from USD weakening. None of it is good! I repeatedly see that the only winners will be those who own real assets. This will make 2008 look like childs play.
Since WWII, we have ran up a good portion being the world policeman primarily defending against Russia, Iran, China, Venezuela, and cartels.
If we want to reign in our deficit going forward, we really need to reign or topple those regimes because we cant afford to defend against them for the entire free world any longer.
You pick entitlements or defense spending to say is the source of our our debt. We have probably spent $25T since the mid 80s on defense spending.
Bottom line is could not and still cannot spend money to the level we are on entitlements and defense needs.
Europe got to spend money on entitlements and focusing on production based economy without having to invest very much of its gdp on defense spending. The came out of the new world order smelling like a rose.
Somehow this inequity needs to be rebalanced if we are to survive as a democracy. Conquest of authoritarian regimes might be the only way to rebalance it...

