No, it doesn’t. I was addressing an issue of why this is not contra-survival in terms of evolutionary biology.
Once a trait enters the population and becomes genetically stabilized, it remains unless something selects against it. This is an ancient system, not something new, that spans the vertebrate world. From fish to chickens to horses, chimps and people, we find this same sex behavior. So, we are going to need a powerful force to select against gayness for it to die out.
But that’s not going to happen because selection acts on individuals and traits, but that action must change the proportion of genes in the population.
The reason this would be difficult is the relationship referred to before in the articles I linked that show that gayness in men comes from women. Genetically and biochemically. The same gene complex that makes it more likely a boy will be born gay, also makes women “superbreeders” - very fertile, fast-breeding, able to bear many children far into middle-age. When they do this, they are most likely to produce a gay male.
Genetics doesn’t care if he grows up and moves away and never writes or calls. They are the woman’s genes, and we select for women who can produce many healthy offspring, thus keeping a stable appearance of gayness trait in the human population.