If you knew anything about the relevant history, then you would know that the Yellow Peril was all about the very poor leaving china to acheive a better life here where they could find jobs and work. This helped china in the sense that it god rid of energetic and self motivated potentially troublesome young males. This is far different from established families shipping hundreds of billions of dollars overseas, and then following themselves. When they leave they take with them skills, knowledge, and often creativity, not just bodies.

Perhaps you can now see that the two migration events are very different with very different likely outcomes for both China and other countries to which the Money and talent migrate, specificially the US