You just described collective bargaining as if it were like an individual hiring a salary negotiator. I suppose we can debate whether some jobs are better off

You just described collective bargaining as if it were like an individual hiring a salary negotiator. I suppose we can debate whether some jobs are better off with or without unionization but it doesn't sound like a genuine argument when you describe it that way. Sadly I think we can honestly say that the unproductive coworkers exist in many different professions and a significant drawback of unions is that they can thrive there.