This seems like the critical parts:

One big problem is that TSMC has been trying to do things the Taiwanese way, even in the U.S. In Taiwan, TSMC is known for extremely rigorous working conditions, including 12-hour work days that extend into the weekends and calling employees into work in the middle of the night for emergencies. TSMC managers in Taiwan are also known to use harsh treatment and threaten workers with being fired for relatively minor failures.

…and …

If TSMC is going to succeed with its Arizona chip-making venture, it needs to come to terms with the fact that it’s not the only game in town there. While TSMC is considered by many in Taiwan as the pinnacle of engineering jobs, other companies in Arizona are competing for that labor pool. Intel, in particular, is expanding its Arizona chip factory.

So TSMC wants to abuse workers …and there’s another local alternative employer in the exact same specialty field that won’t do that.