Earlier quoted context omitted.
The way I understand your position is "we're wired to do/choose X" The big discussion is why have kids. And your position then is we're wired to, just like taking a dump. It's not a good argument in my mind because the position voids every decision. There are no decisions. No free will. We can discuss that, i suppose. edit: saw your update. I don't know I think it tracks. Asking why does someone do something implies…
My discussion was this: >I find discussions of selfishness interesting in the context of a biological imperative. Why is an interesting discussion, but not identical here. The charge I was responding to was specifically addressing selfishness. I am totally open to the idea one can act selfishly both under the pretext that there is or isn't free will, which moots any attempt you're making here to shoehorn the argument…
i don't think this is reductionist btw. Philosophy tends to make people eye-roll. These are unanswerable questions! Discussion is the fun part.