They truly, truly are. Even if you don't add in an incest dynamic, they're still fucked up about each other. They should be more fucked up about each other.

One of the reviewers for that fic pointed out that the most unrealistic part of the canon dynamic is that they're too well adjusted for people who had that kind of childhood, which. I still think about that review every time I dip my toes back into Supernatural fandom.