I'm glad they're doing what it takes to bootstrap the operation. What TSMC does is highly technical and no doubt there will be a ramp up period to build up the labor pool and talent.
Neither TSMC in Arizona or Samsung in Texas were promises made to the Trump admin though. TSMC was announced in May 2020 (tail end of Trump 1) and Samsung was November 2021.
I don't think GP was saying "no one invests in the US," but rather that these particular announcements clearly designed to appease POTUS do not come to fruition.