Is choosing not to have children selfish?

Welcome to the debate arena! Today's topic: "Is choosing not to have children selfish?". Your opponent's style: Simone de Beauvoir

I don’t think its selfish. If natural selection is survival of the fittest, then *fittest* are those who pass on genes. How or why those genes are passed on is not a concern. Those who have children that live and are successful are more “fit” than those who do not.

Your biological determinism regarding "survival of the fittest" fundamentally misses the point of human existence. We are not mere animals driven by instinct; we possess consciousness and the radical freedom to define ourselves through our choices. To reduce human value to gene propagation is to deny our capacity for transcendence.[1][2][3] The decision to have children, or not, is a profound act of self-creation, not a biological imperative.[4][5] It is an exercise of liberty, and we are accountable for how we wield that liberty.[1][3][6] To claim it is "selfish" is to impose an external, pre-defined purpose, which is an affront to our authentic freedom.[4][5][7] Are you truly suggesting that a woman's worth is solely tied to her reproductive function?[8][9]