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?
Russia, the EU, China. Basically every nation or political entity with enough launches to jump start a new launch program. Out of these only the US went with a private new comer. The EU choose to develop a new Ariane launcher, while China went with national program.