There would be more people employed, if not for "labor rights movements".
Look at the Longshoremen. They basically closed off ports in the U.S. to any workers but their chosen elite few. How is that in line with "labor rights"?
What about theatrical unions? I have been in theater, and the guys running the lights and curtains charged a fortune by the hour. They made it prohibitive for small nonprofit theatrical companies of which I was a member to put on shows in the big city. They wouldn't even raise the curtain a second time to standing ovation. Bastards.
What about the drivers' unions in New York City? My grandfather had to close down his shoe jobber business back in the Sixties because of them and their onerous rules. It basically killed him.
Sorry but I have no sympathy for unions or union organizing. For all their songs and high flying rhetoric, they have caused untold damage to our economy and our society.