Hi emmy 47

You've had a difficult journey, and I recognize many parts of it. I had uBPD/NPD parents, and got involved with several BPD people in a row. It's been much better since I began reading on this site; and books recommended here. I've learned a lot of things. I'm hopeful that the same can happen for you. It's amazing how similar some of the stories are, and some of the tools were exactly what I needed.
I put myself on this forum because I'd like to know how much in our lives is linked or caused by genetic versus caused by childhood traumas... .
I'd like to know this too, sorry, I can't find a simple answer to that yet. It looks like the current science points to there being some genetic factors that make some people more susceptible to BPD, and then environmental (family) things have to happen to trigger them. But people can get triggered to BPD even without the genetics.
But there are other people on this site who know more about this. The site is laid out as different forums, that specialize in certain relationships and aspects of dealing with people with BPD. People tend to read the posts on the forums that they know the most about. It sounds to me like you might want to ask that question, and others, on one of these boards:
Parenting a Son or Daughter Suffering from BPD Coping and Healing from a BPD Parent, Sibling, or InlawQuestions about BPD and BPD ResourcesAgain, welcome.
PP