Chinese labor force isn’t going to help defend Taiwan by making tank gadgets for them. Investing in Chinese labor has so many issues. If we didn’t have a rust belt (that led to Trumpism), we would have left a better nation to lead the world and maybe we can think about leveraging world wide labor - but this time with fair conditions and well paid workers.
It’s not just US, it is the same in EU and many other G20 nations.
Your thinking is appealing to emotional and not rational understanding of the globalism. Truth is probably somewhere in the middle.