The right of a child to have a parent until they are 40, 50, 60, 70 years old, overrides the right of an older woman to be a loving parent for 20 - 35 years. I don't see how anyone can make that call
I absolutely think that the rights of the child are always primary to the rights of an adult to parent. Yes.
And that child will not have a fit and healthy mother for 20-35 years. She will be lucky to even have a mother for 20 years. And she will be aware for most of those 20 years of the limited time she has left.
Those of us who have been through the decline of elderly parents, or see our peers going through this, know exactly what a toil it takes emotionally and practically. Its not just about having a living parent - its about having a parent who is able to actually do the parenting whilst you grow up, and whether it is right to choose to have a child when the odds are you are unlikely to be able to do that.
The rights of the child trump the rights of the parent to parent - absolutely.