Ignoring that unions can have both good and bad effects will lead to suboptimal outcomes. By understanding and quantifying the pieces, it may be possible to imp

Ignoring that unions can have both good and bad effects will lead to suboptimal outcomes. By understanding and quantifying the pieces, it may be possible to improve benefits without cost or to lessen downsides without cost. It also allows actors (employees, employers, society) to make better decisions if they have accurate information. None of this makes it propaganda. Propaganda includes ignoring problems by calling them propaganda. A union is exactly a monopoly on labor, both by definition and legally (certainly in the US, and likely elsewhere). Any monopoly has expected pros and cons.