Yes, it’s a hard pill to swallow which is why I went NC with her.
Out of curiosity, why do you think they are the way they are? We had lots of family trauma for atleast 3 generations; starting with my great grandad being a Japanese pow, which, when he came home meant his MH was horrendous and my great grandmother did not cope well with him as she had 7 children to care for alone, this caused trauma to my grandmother who then had a string of terrible DA relationships, became an alcoholic and neglected my mother terribly, who then ended up similar.
My dads mum died when he was a newborn and only he out of his 9 siblings was long term fostered by a family who were alcoholics and would be a mix of lax rules and beat him, he is also a narcissistic.
Knowing all of this it has gave me real guilt in my approach to my parents, but it’s also gave them a reason to be able to abuse me for years longer than they should have been able to as they’d often say “I had it worse, you’re just a spoilt brat, I had nothing, look at what you have”.. it’s been a very confusing tactic of theirs and cruel.