1. Kin Selection and Inclusive Fitness
The idea that only direct reproduction is evolutionarily valuable is outdated.
Kin selection theory (developed by W.D. Hamilton) explains how
non-reproducing individuals can still increase the survival of shared genes by helping close relatives who do reproduce. This is called
inclusive fitness.
Example: If a gay uncle helps raise his nieces and nephews, he may ensure the survival of genes he shares with them—thus contributing indirectly to his own genetic legacy.
This isn't hypothetical—there's anthropological evidence that
in some cultures, same-sex attracted individuals have played crucial support roles in family or tribal systems, increasing the reproductive success of their relatives.
2. Evolution Doesn't Only Select for Reproduction
The framing assumes that evolution is about maximizing reproduction at all costs. But
evolution favors strategies that maximize survival and gene propagation in complex ways. Traits that
indirectly support reproductive success—like intelligence, creativity, or even emotional attunement—can all be adaptive even if they’re not linked to direct reproduction.