>>509052863 (OP)It's called imprinting. In most species childhood development lasts less than a year, but in species like elephants, chimpanzees and humans, it's much slower lasting a decade or more. If during this developmental stage certain stimuli are introduced animals often develop behaviours which are not useful (in that they don't help survival or reproduction).
Some captive chickens think they are ducks, for example. They hang around with ducks and try to mate with ducks because in their developing years the "identity" of being a duck was imprinted in them by proximity. A crazy example is that of a giraffe which followed a land rover around and tried to mate with it because it was born and raised around the vehicles.
In fact many humans develop sexual appetites for animals and even inanimate objects. Even objects that have only been around for a hundred years or so, like cars, letter boxes and plushies. That cannot be explained by genetic coding it can only be explained by imprinting. Through exposure to homosexual activity young children can quite literally become gay in later life. Obviously, it's not a 100% thing but it is a known phenomenon. Presently in Afghanistan young boys are dressed as girls and molested by Taliban men, those young boys very often go on to become Taliban and molest boys themselves. The institutional rape of young boys, unsurprisingly, creates more child rapists.
>tl;dr: accepting open faggotry in society creates more faggotry