What drove American production offshore, was in large part, simple greed.
I think you mischaracterize the dilemma of the manager facing sales losses to cheaper widgets imported by his competitor. Either he takes his business offshore or the vultures of Wall Street will read his next quarterly report and come in for the kill. Thus, a vicious cycle of outsourcing accelerates, generously stimulated by our tax laws and our domestic regulations.
I am not sure all of the assumptions in this article, however, are factually correct when it comes to describing the extent and basis of Chinese trade margins and our trade negatives. It could be that our economy under Trump is doing very well and we are therefore rich enough to export more and the Chinese economy is doing relatively poorly compared to recent years and they are, therefore, importing fewer American goods and basic materials.