Disney's core product is fiction. Fiction in the form of entertainment. Entertainment that distracts from the realities of life.

__fiction__ noun. Literature/media in the form of prose, especially short stories and novels, that describes imaginary events and people.

Disney/Pixar movies are supposed to be feel-good movies for children.

Of course they don't represent reality, and they shouldn't.

Disney started out remaking fairy tales, but rewrote them with happy endings. In the books there always was a sad or bad ending and grusome stuff.

Disney made a series of made for TV movies and the first sad ending one I saw was Old Yeller.