I feel like this is a very convenient scapegoat for American unions to avoid looking internally at their own flaws. Many Americans have negative opinions of unions. Corporations and their wealthy owners have certainly put a lot of money to influence public opinion this way, but they aren't omnipotent. These efforts would be laughable off if the value-add of the union was readily-apparent. Dismissing anyone's negative opinion of a union as being the victim of a propaganda campaign is infantilizing, and dismissive of lived-experiences.

My negative opinion of a union came from my own direct experience as being part of a mega-union that crossed multiple industries. The structure of the union was such that they were so divorced from the actual work being done that they could not possibly help us. Advancement meant playing the union political game, and not being good at your job. They were a constant thorn in all of our sides. I try to limit my disdain to that union in particular (not all unions are like this). But your comment dismissing concerns such as these fault of the business sound incredibly tone deaf. And as a result will not lead to a positive opinion of unions in America.