Abusers are abusers, of course they have some personality disorder,
People should start focusing on acknowledging and correcting their abusive behavior, instead of spending years being diagnosed and coddled for some “personality disorder”.
“Cluster B” sounds like another one of those recent, over-diagnosed, vague, amorphous, applicable-to-everybody spectrum syndromes or disorders that fill the pages of the DSM. It sounds scientificish, but most of it is nonsense. Very few counselors are honest enough to pass up opportunities to make money off endless therapy, and in that they are collectively like the pharma companies pushing drugs to “cure” this plethora of “neurologically atypical personalities” or whatever gibberish.