Well kiddo, the railroads (freight) are back and doing quite well.
No, I'm speaking of the folks that seem to think we're going to return to an industrialized nation that will be in need of hordes of unskilled and semi-skilled labor. The folks that produce regulations that in effect are nothing more than anti-competition protectionism. The folks that underwrite college loans to people that are majoring in the equivalent of 'underwater basket weaving.' The list goes on.
I don't think anyone believes we're going to bring back the 1910 to 1970's factory worker. Even those who grew up in those families know that is the past and good riddance.
We are going to have people to build things, maintain things and to service the wealthy. That has been the way of the world since Rome and technology has never changed that.