The investor class argued that shutting down factories in the American Midwest (where almost none of the investors live, of course) and moving production to China would bring political liberalization to the nation. That's why the US didn't slam the door shut on China after Tienanmen Square with Bush 41, and why Bush 43 was supportive of China joining the WTO. Of course, they didn't liberalize, and now China's using its massive industrial base that Americans funded to increase its capabilities for a showdown with the US (and other Western nations) for global economic and political supremacy.
Really, it was all BS from the start; investors just didn't want to pay working-class Americans anymore and couldn't have cared less about the political implications of the market forces they were unleashing.
It's arguably treason.