"Hasn't responded"? It was America's idea in the first place!
It started 24 years ago with the Clinton administration granting China "most favored nation" status.[0] A controversial move at the time, and one that broke a one of Clinton's campaign promises.
Lest anyone think I'm being partisan about this, it's worth noting that the previous administration (George H.W. Bush) had also been supportive of the idea of opening up trade with China, so it was not limited to any one political party. The idea of opening trade with China had been brewing for a long time, and accelerated once the end of the Cold War occurred. 1994 was when it finally came to pass, thus setting up the events we've seen play out between China and the US for the next two and a half decades. Who knows where it will go from here?
It's particularly sad to go back and read statements from past US presidents expressing optimism that there would be "long-term sustainable progress on human rights" in China as a result of expanding trade, especially given what's happening today with China's "social credit" system.[1]
[0] http://tech.mit.edu/V114/N27/china.27w.html
[1] https://www.reuters.com/article/us-china-credit/china-to-bar...