>>11894483I have asked myself this question before, and I have come to the conclusion that the only realistic answer for the homosexual question is that it is an entirely, or near entirely mental development.
We can deduce this based on a simple fact:
Natural selection can only occur when there are reproductive partners that can breed and create offspring.
A species of animal could never realistically be expected to select for homosexuality to any degree, because it is very simply non-advantageous, should a species of animal have even the slightest chance of a failure to have its offspring reproduce, it would be out-competed by another of it's species that has even the slightest advantage over it.
I do concede that it is possible that the evolution of such a trait as being gay could have been a recent evolution, which has failed to be selected out due to a lack of time, or due to the evolution of human society which could have possibly prevented the death of the gay trait.
However, both of those ideas seem implausible to me.
1. We don't know how long it would take to remove such a gay gene from an entire population, it could occur very fast, as in within one or two lifetimes, seeing as it is so very disadvantageous to not have babies, or it could take a very long time to fully eradicate all theoretical non-gay but dormant gay trait individuals.
2. Seeing as human society has thus far encouraged monogamous or harem style breeding methods depending on the society as a whole, and the fact that gays were scorned for being gay, and often seen as literal demons in disguise, it seems more likely to me that the evolution of human society would have indeed hastened the death of such a trait, if it were genetic.
I hypothesize that gayness is a mental trait that develops as a result of genetic or developmental error or perhaps random chance in some cases, such as autism, schizophrenia, Fetal Alcohol Syndrome, or much less severe, left-handedness.
