I love how you held on to your rationality and didn't take on ownership of her choice to have a child, the twelve hour labor, or the physical trauma from it.
She made you out of love. Okay. But she made an autonomous person, not a possession.
I had a friend who was burdened by the belief of what he continually owed his mother thirty years after the finite twelve hours of labor, and reminded him of that as well as the fact that he wasn't hovering around her before getting pregnant, egging her on to suffer so he could be born. It was an unreasonable emotional burden, more like emotional blackmail, a debt in perpetuity. He dumped some of that burden, some of the irrationality.
I won't disagree that we owe our parents if they gave us a good, safe, loving and stable childhood, if they really worked for it. But they also owe the children they chose to have to provide that kind of foundation, not only for the well-being of the child who didn't ask to be born, but also to ensure that when they are old they have stable, loving support in return. I'm adopted, it was expensive, I've often felt like my parents considered me a bad investment because I'm not like them and not moldable to become like them, wasn't submissive, docile, and willing (let alone able) to change to suit their wishes and convenience.
I'm so glad I didn't have kids. Parents end up worrying and agonizing, but the kids grow up and stop needing, it seems like the if the parents don't have enough emotional or external resources, they keep wanting and wanting. For most, it seems their identities are much more attached to being parents than to being someone's child, and they keep wanting the children to support and feed into that self-identity. Poor countries have different issues, they have kids because they don't have birth control, or for the free labor. I don't think in any culture there hasn't been a resentful struggle between parents and children, or an abundance of parents who respect the boundaries and autonomy of their children. TL;DR it's all fucked. Humanity is fucked. Being social animals is fucked. It's just neverending struggle. We're hardwired to seek autonomous self-determination, yet rarely can anyone achieve it. I'm so pissed at evolution, and this is one of the subjects I'm pissed about.