This isn't just chips and other things with highly centralized and secretive fabrication methods though. There has been a national shortage of trained and qualified Electricians for at least 4 years, and the problem grows.
Electricians are pretty smart and pretty skilled, but doesn't require a ton of secretive technology. But we don't have enough, because we don't train enough. Because a lot of folks can't afford the training, or do not consider that work to be "real" or "making it."