I don't know about all that but from personal experience I can tell you that the town which I grew up (pop. 150,000) employed 30,000 worker's. (My Grandfather worked there all his life) But , because of union's (mob) and other influences they got good pay. so much so that China was able to come here ship steel back to China, and sell it back to us cheaper. The steel mill that provided one fourth of cities jobs, closed down in 1985.I don't know what happened to the rest of the country but this was our experience.