And before we hear them argue that homosexual behavior exists in nature as a defense, please permit me to point out that so does feces-flinging, vomit and young-eating and a whole host of aberrant behaviors.
Homosexual behavior, where it occurs in nature, like in prison, is used to abuse and humiliate, to establish dominance. Of course, some people enjoy being abused.
My dogs favorite snack is warm cat turds out of the litter box.