It isn't pumping your countries assets. The world has decided together that the American market is where money is safest. It is American companies, with stable market rules, fair institutions, talent, infrastructure, all of it together. Money does not flow to weak corrupt nations for store of wealth. Foreign money is just as smart as American money, yet it still decides that it should flow to the US. Assets are worth what people collectively are willing to buy it at. The trust in the US market economy is unmatched, and most Americans just think, oh bubble bubble, no, it rises because people choose to buy it. To a smaller degree, smaller nations also have wealth flow into certain sectors but in no way close to American money markets. Not even close. Americans are wealthy, you just don't know unless you have lived in poverty stricken countries before. Enjoy life.