This is a linkpost for https://nicholasdecker.substack.com/p/should-effective-altruists-have-kids
Yes. I review why children are so important in the context of economic growth. I then roughly estimate parameters for the value that children will create, and it comes out so strongly positive that basically any reasonable altruist would want to have kids.
I think the comparison of "social surplus" to effective donations is mistaken here. A social surplus of $27,275 (in the US) does not save 5 lives, but an effective donation of that size might.