If everyone already knew the truth, then most arguments would be without value.
Are you trying to say that these videos work because most people do not know the truth?
If that’s your point then I agree. But it sounds kinda like you’re implying that everyone already knows unions are good and for that reason we should stop saying that they are. Which is patently false.
Someone who relates to employers as though they were benevolent would reach a different conclusion from you about the motive for the presentation.
I think there is no great complexity beneath the observation.
Someone who relates to employers as though they were benevolent would be incorrect in the case against unions though? Unions have shown to be nearly universally beneficial to the workers that participate in them. That is not my opinion. That is verifiable fact.
If a company was strictly benevolent as you’ve claimed then why contest the union? Why negotiate terms at all? Just hear what the employees en mass want and sign your name on the dotted line. The fact that this does not happen, and we constantly see company’s hire law firms to bust the unions or otherwise drag their feet to apply changes to company structure upon reaching a compromise is objectively evidence that the company is not benevolent.
If unions didn’t work then there would not be unions.