What I’m saying is that genetic variance and gene expression variance aren’t the same thing. In fact in males there is a phenomenon that is called feminization

What I’m saying is that genetic variance and gene expression variance aren’t the same thing. In fact in males there is a phenomenon that is called feminization of gene expression where by removing sexual competition causes gene feminization in males causing the population to more favorably express female bias. https://www.nature.com/articles/ncomms4482 https://www.nature.com/articles/ncomms4482 I can’t find the study now but similar results have been reported in humans especially in sperm and testicular tissue that begin experiencing gene expression feminization rather quickly in monogamous relationships.