I've been in unions. I know the mindset. I know the attitudes of the reps. I also know that unions are political animals which exist for the purpose of self preservation and the accumulation of power and influence for themselves. Any pretense that unions exist "for the workers" is about as believeable as Hildebeast doing anything "for the children" and not for herself.
I wonder, why would a worker do anything unsafe and illegal for years, only to become "safe and legal" when time comes for negotiations? You and I both know the answer to that. It is a dance. A dance that the unions prefer to call the tune for.