Well Western cultures predominantly assume tabula rasa, and these studies largely undermined that assumption, so I think that's a sufficient answer.

I think there's also an assumption that because there's a genetic component, it's a fixed thing.

Gene expression is controlled via the epigenome, which can be affected by trauma.

Why can't it also be impacted by healing?

Also, since you didn't answer the question I asked, it's not a sufficient answer. I'm not talking about tabula rasa. I'm talking about static vs dynamic personality.