That will have complications in the future, but that's the next generations issue, not the person making the decision today that wants a nice bonus.
So it's in fact hard to get money out of china.
[1] https://www.statista.com/statistics/263632/trade-balance-of-...
[2] https://www.statista.com/statistics/220041/total-value-of-us...
If your think that surplus is a lot, then 5 times that is definitely not "they don't import much"