I did not say the shortage was created by GA manufacturers, I said that GA in general is the start of the career progression for airline pilots in the US hence it serves a critical function for society. I too thought the pilot shortage was a myth until this past summer when it became abundantly clear there were not enough pilots in the world to deal with the resurgence of travel.
You could also argue that US pilots have superior training due to their GA experience as well. The over-reliance on automation and lack of stick and rudder skills is becoming a liability in those foreign airlines that train pilots exclusively in simulators and then throw them into the right seat of airliners where they're essentially computer operators instead of pilots.
The inability to for an airline pilot to land without autopilot is a very real thing: https://metro.co.uk/2019/05/16/russian-jet-crashed-captain-c...
Or the ability to fly in IMC conditions without an autopilot: https://www.flightglobal.com/safety/experienced-crew-struggl...
