I don't think unions are needed at all. They might have been needed at the time - a long time ago - to protect the workers, but now it's gotten out of control. Employees use unions to get a good paying job, do as little work as possible, and stay in an entry level position for decades.
I worked for the phone company. I was stunned to see fifty year old men and women who had the same entry level position for thirty years.
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