The way Disney butchered the story. What if Luke stayed and the new structure solidified and the Jedi became active through the galaxy keeping peace and supporting strong good minimal govt, going after thugs and bullies. There would be a whole galaxy full of them to deal with...
Many thoughtful things written by serious authors who knew how to tell a story. They had the rights. And they tossed it.
Because they are children who think they can produce better stuff.
They honestly think they are the smartest people ever.