I would agree employers would likely want that, though since in the us it’s difficult for labor unions to ever be created let alone extra protections or the necessity of tips or us at-will hire/fire.

My point of your thread was disagreement with the immediate transfer of knowledge: “Most every job can be easily trained or cross trained.”

I disagree with most jobs can easily be trained or cross trained, there is more of a time sync between that.

The national government functions as a labor union through its control of the border and regulating the conditions of employment.

>I disagree with most jobs can easily be trained or cross trained

People just overestimate how complicated their job is because it makes them feel important. If anything immigrants take longer to get up to speed which is why companies usually only hire them when its cheaper. Or nepotism.