I mean, it absolutely can return, but it's not going to be like my grandfather's time where he could support a family of four (with a vacation home) on what he earned building Buicks.
The level of automation in factories here in the US is already below what it should be, as the Unions are fighting to keep those jobs in human hands.
Fewer jobs & substantially higher automation.
The value of unskilled labor is going to continue to diminish, it's peak value before, during & after WWII was the historical anomaly not the norm. Before the industrial revolution, you mostly had to know how to do shit to be of value, and in the post industrial era you once again have to have skills to be of value. The biggest issue is those skills are changing and evolving at a rapid pace, instead of remaining stagnant for generations like before the industrial revolution.