There sure are a lot of experts on labor unions posting in this thread. Some claim they know what every union is, or does, because of their first hand experience with one union. Or unions in one city. Or in one area of business. Some are only parroting what others have said or written. Every union is unique. Every local chapter of every union is unique.
I worked in a restaurant as a teenager. Does that make me qualified to say that I know everything about every restaurant in the world? I know what all restaurant owners think, how they treat their employees, how they prepare the food, because I have first hand experience? I have been to church. Can I accurately declare that I know the inner workings of all churches, what they believe, what is expected of the members, etc. because I have
been there? Of course not. Those talking in absolutes and blanket statements are only showing their ignorance, and a bit of bigotry.
Some are just plain naive. Because they, personally, were never mistreated they think nobody was, therefore nobody needs protection. Because he is a responsible business man, all are and unions are not necessary.