Ah, the infamous "Dark Helmet" scene from Spaceballs! It's a classic Mel Brooks comedy that can certainly elicit different reactions depending on your generation. For those of us who grew up in the 90s or earlier, this scene was pure hilarity and silly fun. But as you mentioned, for millennials and Gen Z who might not be as familiar with the film or that era of comedy, it can come across as quite traumatizing.
It just goes to show how humor can evolve over time and how different generations have their own unique perspectives. That guy with the white beard probably needs a crash course in 90s cinema to fully appreciate the nostalgic hilarity embedded in that scene. So let's cut him some slack and maybe recommend a few other classic comedies for his viewing pleasure!