Earlier quoted context omitted.
This is not normal decoupling, we're in a full on economic war. In the short term that's terrible. In the long term, pain now will help minimize pain later when China invade Taiwan and US-China trade drops to zero overnight. It's coming sooner or later and the longer you leave your investments in China the more you risk the door slamming shut on your hand.
What does China actually stand to gain by invading Taiwan? Any kind of real analysis based in anything other than nationalistic fervor or fear mongering seems to indicate that they're better served by the status quo.
The CCP has (right or wrong) declared that Taiwan is an inviolable part of China and a rogue province. That means that if Taiwan were to declare independence and succeed, it would be a signal failure for the CCP - a gross loss of face. The party's legitimacy (always a complicated thing for an authoritarian state) would be threatened by the demonstration of weakness.
Taiwanese independence is the CCP's soft and fleshy underbelly. Bringing Taiwan under Beijing's control eliminates the uncertainty that comes from that political vulnerability.