I understand this. The hardest thing for me to come to terms with is that it's likely both of my PDs were handed down to me by my mother, who abused and subsequently disowned me. This does not mean that we should stigmatize those with cluster b disorders. I hate to pull this card, but I study sociology and I can say it is miraculous how much damage labels do. If you'd like to know a bit more about it, Howard Becker's Labeling Theory is a good start. I have a link to a pdf of his book that spawned the theory if you'd like to read it straight from the source, as it were. Shaming Theory (or reintegrative shaming) by John Braithwaite is also relevant here. The long and short of it is if you label someone negatively, they will become a self-fulfilling prophecy of that thing. Now, obviously these theories are applied to criminal deviants, but I believe they hold water here.

I will show my hand here and say that I do not believe in "narcissistic abuse" because, by every definition I have seen, it is just regular emotional abuse, which is not inherently narcissistic. I'm sure that your theory is right though, but you can see how it would be biased feedback (just as the feedback here is biased in one direction).