My abuse by Narc father and Borderline/Narc mother is well documented here.
My Narc father is evil to the core so not a complex persona to analyze. My mother, OTOH, defended me at times from my older sister -- but abused me herself and ganged up on me with the rest of them at other times. Ergo, her persona is more complex and I have conflicting/mixed feelings about her.
My understanding is that it is common for children to resent the bystanding, nonabusive parent. I have struggled with this for years. My mother was also abused by my dad (I intervened to protect her a couple of times), her own parents as a child (and as an adult), and eventually my older brother. Needless to say, she was an emotional wreck.
Not defending one's young seems to fly in the face of Mother Nature. I just don't get it. I would NEVER allow anyone, not even my spouse, to harm any child, especially mine/ours. I would do whatever necessary to get us to a safe place. My mother did not; she stayed until it killed her.
If you have had these feelings of resentment toward your nonabusive parent, how did you resolve them? What I'm really asking is how do you put all this in its proper place? I need some peace.