Businesses don't go to China because they want to. They do so because they have no other choice. When the combination of regulatory, tax and labor regulations makes it so it is impossible to compete you are left with two choices: Embrace China or close the doors.

While "other business would fill up that place" might sound like a nice heart-warming idea, it is a fantasy. The only businesses that will fill that place are Chinese businesses selling directly in the US and Europe (an ever-increasing category, just search Amazon) or US and European businesses who have outsourced enough of their operation to China to be competitive.