Has anyone here done any research on how their parents were raised, and started to notice a pattern of borderline/narcissistic behaviors that had been passed down to them?

The farther back I do research on my single parent's family, the more I discover the following: generation after generation after generation self-medicated, was impulsive, was very creative, and ultimately raised their children in the same fashion as my parent then raised me. My single parent checks off every box for narcissistic/borderline personality disorder. So did one of her parents. And so did one of their's....

I feel that BPD is a mix of genetics and behavioral exposure from a primary caregiver. I think that males and females dealt with it differently, but it definitely ran rampant through my family. It doesn't exactly give me peace, however. Maybe a bit of understanding, but not peace. I know the world is different now and we still have A LONG WAY to go with understanding mental health surrounding trauma and borderline and narcissism. But why am I the FIRST one in my family to realize that this is no way to raise a child?! The name-calling. The hitting. The drinking. The verbal abuse. The manipulation. The need for complete control and absence of boundaries?

Has anyone else done this same research on their family history? What have you found when it comes to BPD-like behaviors?