(c) For some reason, most people really want to have children.
"For some reason"? Is natural selection not a good enough reason that people have this desire?
(d) Humans aren't exactly rational creatures.
True, but not relevant when talking about goals. Reason cannot tell you that your highest goals are right or wrong, only that some action or lesser goal is right or wrong with respect to a higher goal. I think the drive to reproduce is probably a pretty high-level goal, and while wealth has temporarily short-circuited it somehow in many developing countries, that situation doesn't seem stable.
"For some reason"? Is natural selection not a good enough reason that people have this desire?
(d) Humans aren't exactly rational creatures.
True, but not relevant when talking about goals. Reason cannot tell you that your highest goals are right or wrong, only that some action or lesser goal is right or wrong with respect to a higher goal. I think the drive to reproduce is probably a pretty high-level goal, and while wealth has temporarily short-circuited it somehow in many developing countries, that situation doesn't seem stable.