Good post. I don't in the least 'blame' my parents, of whom I am very fond.
What therapy has made me aware of is the extent to which my adult character and coping strategies have been formed by the fact that my parents had far more children than they could afford, financially or emotionally, and, themselves from poor, dysfunctional backgrounds, weren't able to parent us because neither of them got anything from their own parents but the absolutely basics of (not quite enough) food and clothing -- which meant that my earliest lesson as the eldest was not to be a bother, because they couldn't deal with stuff, and hadn't enough bandwidth to deal with the needs of a young child.
Which meant that when I was sexually abused aged nine it never even occurred to me to tell them, because they would have been paralysed, not done anything and tried to explain it away as a misunderstanding, just as they did when a teacher was bullying me at school.
Again, I don't blame them (though I think for some people there's a stage in therapy where the blame comes uppermost for a while, because recognising it is new). But I'm still living with the legacy of having learnt very young to ignore my own feelings, dismiss my instinct, pretend I didn't have a body, and just trudge on with things. I chose people in my life as an adult who also ignored me or weren't able to deal with my feelings. Therapy has helped me recognise these scripts and patterns and find a way of working on them to change them.
It's been a very positive experience.