The terms you've used, "malignant narcissist," "sociopathic," and "borderline," all refer to complex and distinct personality traits and disorders.
Narcissistic Personality Disorder (NPD) is characterized by an excessive need for admiration, a lack of empathy, and a grandiose sense of self-importance. It is a personality disorder and should not be casually used to label people. Similarly, Antisocial Personality Disorder (ASPD) is often referred to as "sociopathy" or "psychopathy." Individuals with ASPD may have a pattern of manipulating, exploiting, and disregarding the rights of others.
Borderline Personality Disorder (BPD) is a different condition characterized by unstable relationships, self-image, and emotions. It often involves difficulties with self-regulation and fear of abandonment.
It is essential to remember that mental health conditions and personality traits exist on a spectrum and can manifest in various ways in different individuals. Making assumptions or linking one specific disorder to another is not accurate or helpful in understanding or addressing mental health issues.
If you or someone you know is struggling with mental health concerns, it's essential to consult a qualified mental health professional for an accurate assessment and personalized support. They can provide proper diagnosis and develop a treatment plan tailored to individual needs.