Of course no one is mad, you are posing a philosophical question or just trying to understand your feelings. It can take years and years to sort out our family's effect on us. It is healthy to assess how your upbringing (some of our temperament comes from our genes which makes it all doubly confusing) effected you and compensate if you can. Sometimes people in our family can be toxic and when we figure that out then the healthiest thing we can do is limit our interactions and ties with them.

I personally feel indebted to my parents but that is because from my POV, they went above and beyond the call of duty in regards to the sacrifices they made for me. Of course, not all parents do this and parenting is complicated and effected by outside events (war, deaths, economy, ancestors, etc). To be fair to your parents, look at their deeds and words when you evaluate whether or not to include them in your life. Above all, did they love you as a child and do they love you now? To me, ideal love includes some of the things defined as love in the bible: "Love is patient and kind....... It does not insist on its own way; it is not irritable or resentful; ...... Love bears all things, believes all things, hopes all things, endures all things." It is hard to love anyone this purely all the time but if your parent(s) believe in you, put a significant portion of their resources into you, are kind and encouraging to you, willing to help you when they can, etc, then IMO, they deserve respect.