It's an interesting point but I don't take away more from the article itself then and idea of how personality might work for different people I don't see that being a consistent pattern across any variation of humanity especially what makes us us.

I was raised as a doll not a person I still found a way to be a person. I was raised to be an extension of another human being like a piece of Adam's Rib from my mother and still I'm a completely independent thinker. We are not always simple often paradoxical.

Do you mean in terms of being an extension of a parent that's an important conversation I think it relates to narcissists quite frequently but it is a distortion of Parental responsibility to only see your child as extension of self and it gives rise to abuse sometimes

Creepy weird it seems they wish to not support their kids rather validate each other through bias and perpetuation of a passive-aggressive method that does not support you or them in the long run but separates, abuses, denies all a happier way of life without estrangement.

So it sounds to me as if your mother is using support to either validate her own belief or suspicion that this was done to you as opposed to is you set up partner would do that that you don't have your own agency to determine that is narcissism to appoint oneself above anyone.