Are abortion rights are based on the sexual choices of ones parents?
The source of the right to life is not the choices of one’s parents, e.g. a two year old child’s rights are not based on any decisions made by its parents. The source of the right to life is one’s nature as a rational being (see Man’s Rights by Ayn Rand, published in Capitalism: The Unknown Ideal). Similarly, a fetus’ lack of rights, are based on its nature as human tissue—and not on the choices of those who brought it into being.