About the Nikkei article, there are a few things I disagree with:
14nm and below chips are hard to make with the equipment export ban. China not able to buy the best lithography equipment means even if the can mass produce them with their own equipment, they would be very high cost (low yield), just look at Intel and Samsung not able to compete at the same without TSMC. They may find a way in 20 years, but not now, not in the next 5 years, most likely won't in the next 10 years either. They will have to build their own things by trial and error and constantly playing catch up like building their own CPU back then.
About US forcing TSMC to build their best fab in the US:
Their stock price dropped quite a bit and Warren Buffet bailed on his investment on TSMC, and it is likely because it won't be a good return on investment as the US talent isn't up to par compare to Taiwan for the best technologies, or cost more (way more) than Taiwan. Pretty simple every time when you force a business to do a political move it will be less profitable than let the free market does its thing.