People in power tell lower class People that Union are bad.
I was worried that might have been the case.
Gathering what I hear from many non-unionized factory workers I know: It's because a few bigger name unions in the mid-late 20th century in America were riddled with scandals and corruption. American culture is extremely individualistic in many regards and the idea that the group could be exploited for any reason other than the benefit of the workers involved gave unions a bad reputation in their eyes.
I have heard a little about the corruption and organized crime involved in the 80s or around that time, but one would hope that things would move forward after so long.
When I was working a retail job a number of years ago, the business tried to call people in for 1 hour shifts, which is frankly ridiculous. If it wasn't for our union, so many people would have been totally fucked being asked to do crazy shit like a 1 hour shift packing shelves at 3 AM before the store opens etc.
The only reason I bring it up here is after talking to a friend just now who said he is given very, very few days off per year (as far as paid vacation goes, and comparing it to what we are given here) and thinking about the whole WWF controversy way back in the day.
Unions aren't all good here either and often do a lot of dodgy shit to try and get more money for people who are on 300k a year (in the power industry, mainly), but they do more good than bad by a pretty wide margin.
