Let me tell you a true story. I was 16 when I met my first union steward (UFCW). She felt me out over a few conversations during breaks and lunches. Then, she invited me to a communist party meeting.
I remember being in a union meeting in 1980 when they were supporting Teddy Kennedy over Jimmy Carter in the primaries!
Talk about out of touch!
When I was in junion high we had a union representative speak to our class. I don’t remember what he said, but I do remember it was kind of scary.
During WW II Unions were organizing in the lead and zinc mines in my area, my mother became an FBI informant at that time, many of our friends and neighbors fell into the marxist trap. The union organizer was appropriately named "Red" Haines, however he did have red hair.
This was most definitely FDR voters and most of my childhood friends, at least the few that aren't dead, still bow to FDR.