Oh please. You know nothing about the number of industrial workers in the US. I almost wish the connection would get severed if only to force us off the Chinese teat.
Easily replaced. It would take time but plenty of skilled workers in the US and Europe.
And what is your definition of time? 5 generations? Because your own number been going straight fucking down since the 1980s and it has never recovered from the 2008 recession. Not to mention. It started to flatline in Q4 2018 or roughly 15 months before the pandemic.