Realistically, though, can a person be both an enabler and a gang leader? Usually these are two different roles.
Not meaning to be contentious, just conversing my thoughts about the dynamic here.
Perhaps I have watched too many You Tube videos explaining family roles in a narcissistic family, but I am seeing the dynamics of such a family played out here in the roles of Golden Child, Scapegoat, and the Invisible Child. These are very typical roles that children are handed by an NPD parent who highly values one over the others (CR), blaming one specific child for all the problems (TR), and not even seeing another child (JJV).
The bottom line being that they all are viewed as objects, non-human beings, only there to feed narcissistic supply to the NPD parent, and are quickly devalued and discarded when they no longer serve a purpose.
Sad, so very sad, poor darlings.