Earlier quoted context omitted.
> democratic states are consistently better than non-democratic ones Union wages are consistently higher than non-union wages, so we have evidence that unions are an improvement compared to direct relationships with employers. Source: literally every long-term economic comparison of wages done for the last 50 years.
And not only wages, almost every single work right has been won by sweat and blood of the organized workers. 8 hours working day, 2 days off a week, vacation time, pregnancy leave, medical insurance, etc, etc. None of them was implemented as result of the benevolence of the dominant classes.
Activists always want to take credit, but it's the engineers and scientists who actually did the thing that changed the pattern that had lasted for 10,000 years. Unions are just one particular way of structuring one side of a human conflict that is as old as civilization and as inherent as gravity.