[dfxm12]

I think, based on the anti-union talking points I see, the media is most responsible for anti-union sentiment, whether it's the normal corporate friendly mainstream media or classic films like On the Waterfront where union corruption is a side plot. Complimenting this are books, biopics, news stories, etc. of mythologized biographies portraying some business leaders as people who have pulled themselves up by their bootstraps, when they were really born into a privileged position (see: Gates, Musk, Zuck, etc.).