The so-called "right to life" crowd is not promoting quality of life. They're promoting existence.
I believe a child has more than a right to exist. I believe a child has a right to be loved, to be cared for, to be educated, and that society, as a whole, has an obligation to its children to provide the infrastructure and social constructs to help their parents achieve these objectives.
Countries with mandated parental and family leave, government funded health care, and where children must receive sex education in their schools, have a much lower rate of abortion than the US. American conservative economic policies are contributors to the high rate of abortion in the US, and yet conservatives are the people who supposedly oppose abortion. Not only are conservative policies the reason for the high rate of abortion in the US, but they have the unmitigated gall to blame liberals for high abortion rates.
I live in Canada, where abortion is not only legal and available, it's also free. And yet Canada's abortion rate is roughly half that of the US. And Canadian teenagers are also able to obtain an abortion without getting parental consent. The difference between our countries is in our social safety net which supports parents having children.