I think I probably did. I didn't make the discovery until I was in my fifties and remaking contact with my extended family . They told me some things which kinda filled in a few blanks. It also explained some of the apparently nasty things my mother did to me even after Dad died. I cut off contact with her after that. She is BTW a chronic alcoholic of the hate filled variety. She hates me and the whole extended family equally. She is very fair minded like that.
Up till then I had no idea. Your parents are your parents, there is no basis for judging how good they are from the point of view of a child, they are just your normal parents.
It doesn't change the fact that I am an alcoholic. Early in my journey I cast about for reasons, but I concluded that even if I could pin it down to the fault of a single person, what good would it do? It may just create a resentment and I don't need one of those.
So I have concentrated on what is rather than why it is.