This cleared it up for me. So this isn’t really about a preference for “warfighting” or “danger”, this is about a preference for death in battle, as in Norse Vikings, Japanese Samurai, and Spartan and Aztec Warriors. This is more clearly analogous to a preference for chastity in terms of direct reproductive success. Preferences for death by martyrdom could be another example.
This cleared it up for me. So this isn’t really about a preference for “warfighting” or “danger”, this is about a preference for death in battle, as in Norse Vikings, Japanese Samurai, and Spartan and Aztec Warriors. This is more clearly analogous to a preference for chastity in terms of direct reproductive success. Preferences for death by martyrdom could be another example.