The issue is that the more you import from China, the more USD they accumulate, and the more attractive an export market they become. Trade is a two-way street,

The issue is that the more you import from China, the more USD they accumulate, and the more attractive an export market they become. Trade is a two-way street, you can't keep up a permanent stream of imports forever without giving something in return. There's no such thing as a free lunch.