There is no manufacturing in the US, because the Unions got grunt workers paid $30 an hour to put a widget on to a widget. Mindless work that robots, monkeys, or sweatshops can do for next to nothing. If the unions wouldn't have DEMANDED outrageous wages for grunt workers there would be plenty of those jobs making a reasonable 12 - 15 per hour.
Not saying unions are ALL bad. But at the same time a Union shouldn't have to tell a company about it's work conditions. The law should, therefor a no need for a union at all.