This was going to be my point. A lot of those rmaining union workers have gotten raises while the rest of the workforce wages have gone down.
Fer instance, those "infrastructure" jobs and "green" construction jo9bs have seen a wage increase of almost 20% since '08. An equipment operator here in central IN was making $36/hr in '08...today it is almot $44/hr.. and this is one of the lower paying areas in the country
I used to work in the railroad industry, which has incredibly strong unions. Their unions will flat out tell you that their goal is to maintain high wages and good work conditions for CURRENT members. Management tells them that if they don’t take concessions, the workforce will shrink over time and the unions say they don’t care. Its all about current wages and benefits, period.