the definition of a mental disorder is
(psychiatry) a psychological disorder of thought or emotion
that doesn't require a pathology.
heres the definition of pathology
The scientific study of the nature of disease and its causes, processes, development, and consequences.
The anatomic or functional manifestations of a disease.
A departure or deviation from a normal condition.
that doesn't require an emphasis on the cause, you can have a pathology and have an emphasis on the outcomes, or manifestations, rather then the cause.
here is the defintion of a psychatric complex
A complex is an underlying structure that is objectified as a theme (like power or status) by grouping clusters of emotions, memories, perceptions, and wishes in the personal unconscious; opposite of drive.
so you are splitting hairs by trying to find some arbitrary difference that doesn't need to be there, and also missing the point by thinking that the one difference that is there is some how a flaw on my point, its not.
i am specifically saying that not focusing on the "cause" of a problem is better, you should instead be focusing on the outcomes and underlying goals. >BPD behaviors do have a predictable cause, though. That cause is childhood trauma such as sexual abuse.
so does an inferiority complex, except, the emphasis of the research isn't to magnify and navel gaze about what ever cause, and it doesn't restrict a syndrome or complex to neccessarily being about one cause. alfred adler said the exact same shit about inferiority complexes that other psychiatrists said about bpd, that it was often a by product of a childs upbringing before the age of ten.