[EliRivers]

extremely biologically conserved process

This seems just plain wrong. It is not at all extremely biologically conserved.

Pregnancy and birth varies wildly across species. Not conserved. For primates, it's got problems; in humans, pregnancy is an absolute mess. The birth itself is historically one of the most dangerous things a woman can do, and remains not exactly a walk in the park even with the best of modern interventions.

[Terr_]

Plus even if it were conserved--in the sense that all our relatives have settled on the same winning-strategy with little variation--there's still a naturalistic fallacy waiting in there.

Does the popularity of cancers as one ages mean we should just let people die because Nature Always Knows Best?