I’d like a movie by any set of storytellers about good people learning how to be better people at while triumphing over bad people who are doing bad things for their own benefit.
God, I’d love to see a story like that in Star Wars.
Hasn’t that been literally every Star Wars movie ever made? I think the sympathetic Vader/Kylo figures you describe are the exception, not the norm. Either way, I think it’s overly simplistic to say that no one in a fictional fascist state should be allowed to have any sympathetic motivations whatsoever. Regardless of your political leanings, I don’t think it’s very good to simplify one side into being a bunch of complete monsters who do evil things just for shits and giggles. That’s not how real life conflict works.