A reasonable description of the practices of most American unions. My understanding is that German unions are quite different, and are much closer to what labor unions ought to be.
I was around in the late '40s-early '50s when Germany started to pull itself out of the rubble. I remember reading that their unions, and their members, agreed to hold fast on wages and not demand increases until their economy picked up. This would not have worked anywhere else in the world except in Germany.