> DID and related dissociative disorders are based in trauma and are NOT something you can be born with. While trauma can cause neurological changes, they are not neurochemical in nature

2nd paragraph of the wikipedia article says that although mostly caused by trauma, "Genetic and biological factors are also believed to play a role."

So i'm not sure you can claim that there is for sure no neurochemical basis. Seems like we don't understand it well enough to make that claim.