Sure, because that's exactly what happened when unions gave us the the 5 day 40 hour work week and numerous other worker's rights, right? Child labor just disappeared on it's own right?

Social security, workplace safety, overtime ... all just magically appeared, correct?

Because maybe, again, just maybe, I'm being dense, but I don't think "skillsets" were ever a limiting factor for those who spearheaded unionization. "skillsets" are a facet of the bourgeoisie labor market, which I say as a firm capitalist. It's always been those at the bottom who have fought for worker's rights.