In the 70’s,kids in class learned THE BOAT GAME...6 people in a boat,only room for 3...who gets killed...Kids learned not everyone deserves to live
That made a big impression on me, but not the way they wanted.
I encountered the Life Boat in 8th grade (mid 70s). Up until that year I had always had history classes as part of my curriculum. It was my favorite class (I eventually got a BA in history). But in 8th grade, they replaced History with "Social Studies". And they focused on a whole bunch of stuff which seemed very questionable to me. The Life Boat being a memorable piece of that. I was a fairly clueless kid in a lot of ways, but that lesson just told me that were trying to tell us some people deserved to die. They didn't say "useless eater" but that was the idea that they wanted us to absorb. I've despised that side of the political spectrum ever since.
They also tried to convince me that the Industrial Revolution was bad because factory owners offered jobs to people. And sometimes people took those jobs and ended up not liking them. For the teacher this was "exploiting the worker". For me it was, "If that's the best job you can find, why are you complaining?"