I think it’s because the Nazis while the enemy, are still portrayed as powerful and intelligent. I mean, they make a mecha-Hitler and all the bosses are Arnold big bodybuilders. I think Jojo Rabbit took a great approach to Nazis, show how evil their ideology is while taking the absolute piss out of them and making them look like laughingstocks. That level of nuance was difficult with the technology they were working with though, and wolf3d really was a revolution in itself.
This. From my experience, the kind of people who are drawn to fascism, the thing they hate more than anything else is being laughed at. Make them into a joke, they're likely to just rage-quit.
The jojo most people mean when they say that is The Bizarre Adventures of Jojo or something like that, I haven’t seen much myself. I’m talking about Jojo Rabbit though, which was a Taiki Waititi absurdist comedy-drama movie about a boy in Nazi Germany.