I understand the axioms that lead to this assertion, but I reject the premise. It’s a terminal-stage evolution of western individualism. You don’t just have an obligation to yourself. The “child free” deprive their parents of grand kids, their siblings’ children of nieces and nephews, their neighbors of a bustling joyful society full of children.
From a technologist point of view it’s also just sad and defeatist. At the limit, we could solve climate change by just all killing our selves. You’re proposing to do that, just slower.