I think it’s stupid. Butters is just a child playing with his imagination he doesn’t have DID. If anything Cartman has DID
South Park
Everything related to the animated television show South Park! (Images, videos, quotes, news, articles, thoughts, trivia, etc.)
I think people believing this theory shows that the stupid adults of South Park aren't as much of a parody as we would like
I imagine the people who think that are insufferable.
In City Sushi it was shown that Butters was just playing like kids do. The adults misinterpreted it to be DID because of insane Dr. Janus that actually had the DID. The Post Covid specials were an alternate reality so I do not think any of that counts.
Children of his age can’t have DID with formed “alters” so I’d say no
Butters is pretty obviously just playing. And as Vic Chaos he clearly knows that he used to be Butters Stotch. It’s not like Cartman who genuinely believes that Mitch Conner and Cupid Me are separate entities from himself.
When people start to find meaning of joke, they usually find more, then originaly was
Vic chaos