I have manufacturing experience in 3 States (all Rust Belt), and I concur. Moreover, at my current company, the hardest (new) workers are all Mexican. Yes, they are legal.
Yes.....and if you look into the sciences, you will find Asians and Indians..a few eastern Europeans as well.
It’s also notable, that few young are apprenticing in the skilled trades, even thought great effort has been made to draw them in.
I could not even get mu son to consider it. He saw what I did and determined it to be too hard....