Starting trade wars would not be good for the us. It would just lead to more international dominance from China. At least we can be competitive in the services sector with current policy. Trade wars would just make us even less competitive. Moving away from a replaceable manufacturing economy to a high skill services economy is a good thing, and cutting off other countries would make the us worse off.
Trade wars are sometimes justified. Your suggested strategy does not only have bad political and human consequences - it's not stable strategically.
Eventually, China will use its huge manufacturing edge to create a military advantage - this is already starting to happen - and then it could bully all of East Asia to give its trade massive advantages, while absorbing Taiwan.
The US must rebalance before it is too late. Hopefully latest technological development might make this rebalance easier.
