In hindsight, I think US having good or even decent relations with China will be seen as a historic strategic mistake. The Sino-Soviet split seemed like a brilliant move at the time but birthed a monster. Giving even one ounce of legitimacy to the CCP was clearly a long term miscalculation. The soviet union would have fallen eventually anyways, there was no need to court demons.
We used to cut these countries off and isolate them, now we do business with them while they steal our tech and manipulate our population. Now it looks like we have a vehemently anti-western authoritarian superpower in the making.