Narcissism as genetic plus idiosyncrasy

A short, testable claim that narcissistic personality emerges from roughly equal contributions of heredity and unique, nonshared life events, with minimal or no influence from conventional socialization (parents, schools, community). The framing reframes responsibility and interventions away from family‑level socialization toward biological and individualized experience explanations. — If adopted, this framing would shift debates about parenting, therapy, and liability toward genetics and individualized interventions, affecting education, family policy, and cultural narratives about blame and changeability.