There is no labor shortage, that’s the Chamber of Crony Capitalism talking.
From what I’ve read there is a shortage of skilled labor. Welders, machinists, pipe fitters, plumbers, etc. With so many more kids going to college on their “free” government loans - being a plumber is beneath them. Why would a railroad offer them a $25,000 signing bonus if there were so many folks looking for a job there?