The point wasn't just about SpaceX. "A whole industry bootstrapping itself to make semi-conductors doubling every 18 months". That semiconductor manufacturing industry is largely overseas and has been for awhile.
I don't quite follow you here. Sure, lots of (non-Intel) semi-manufacturing happens outside the US in 2021. But when the industry built itself, a huge portion was in the... USA. Just like the space industry.
and is, oddly enough, coming back to the US. There's a semiconductor fab opening in Austin courtesy of Samsung, and a semi fab in arizona courtesy of TSMC. I guess they are taking advantage of labor and technical expertise due to intel's chandler site?