When I was in Junior High School (we call it Middle School today) I worked in the audiovisual section of the library during study hall.
Someone had donated a shelf full of Nazi propaganda films with English subtitles. With nothing else to do, my friends and I would watch these films over the course of many weeks.
Keep this in mind. I was 13-15 years old in that part of my life. However, I had the benefit of knowing what the Nazis were really about. My Father and several uncles fought old Schicklgruber and his minions.
So when we watched these propaganda films we knew that the message was a false one in each one.
Yet had I been that same age, watching these films in a German movie theater in the 1930s I probably would have believed them like many misled youth of that day.
The number one thing that I walked away with watching those movies was how darn good the Nazis were at getting people to believe their BS. Leni Riefenstahl and Josef Goebbels would be glad to hear that complement but they can't do much with it in hell now.
Without any opposing viewpoint or access to facts that would impeach the false message it's very easy for people to succumb to the reassuring lies from evil people.
The other thing that I benefited from while watching the Nazi propaganda films was that I learned to recognize REAL propaganda when I saw it.
When the FBI trains their agents to recognize counterfeit money they don't have them study the fake stuff. They have them study the REAL money so they can spot a fake when they see it.
I asked an expert on Rolex watches how he could spot a fake Rolex. He told me that when you handle enough real Rolexes it's easy to spot a fake.
So you might say that the inverse is true when it comes to Propaganda.
IF someone were to donate Nazi propaganda films to a school today they would burn those films as fast as Hitler burned the books in 1933.
I would have liked to met the person that donated those films, not for what they promoted, but for helping me to recognize what evil looks like when it's sugar-coated, drizzled with chocolate syrup and served on a silver platter.