Chinese economy is also completely dependent on imports. US does not need sail its carriers to Taiwan, it needs to park half a dozen attack subs on Chinese trade routes. Same applies to Taiwanese program to build indigenous electric subs with help of Japan, once even few those are complete the equation changes completely.
PRC has no chance in hell for an amphibious landing operation in Taiwan. So this is going to take quite a while.
Having said that US resolve switches around every 4 years so given a proper timing they might sit it out. However there are some interesting consequences. Japan will test a nuclear weapon and a delivery system and commence crash manufacturing program to assemble an arsenal in matter of weeks. US will get kicked out from Okinawa and mainland Japan and most likely a containment alliance between India, Japan and Australia will become not just paper but more like NATO with Joint command, staff, plans etc. I wonder what Vietnam will do, lets hope for their sake they have a secret nuclear program.