Homophobia and monogamy are social facts necessary to conserve the species, but especially suitable for the rulers.
As free will is a widespread belief but not a proven truth, doubt his existence. They are natural laws that affect us in our decision to brush our teeth.
The extreme aggressiveness and ambition specific to certain eras and peoples, we were pressured particularly concerned about the survival of the species.
By wars and plagues survival instinct feared for our continuity on the face of the Earth.
This hypothesis could explain the homophobia and monogamy.
As I have discussed elsewhere (1) learn to love the attention they receive from our mother.
The love we know is the reaction to who gives us food, shelter, protection, tenderness. For this "love is needed" and love who selflessly cares safely.
Because we learn to love a woman may think that love is a feeling chiefly reserved for a woman.
The only drawback of homosexuality has to do with the inability to fertilize.
If our species fears of extermination suffered because of wars and plagues, it is logical to think that homosexuality has become a threat as serious as a war or an epidemic.
This fear is realistic and explains homophobia.
Humans are better controlled when we belong to groups. For reasons of control individuals governments have always promoted the creation of families (father, mother, children).
The women love makes women themselves have lesbian desires and moderate interest in boys, who only are essential to impregnate.
Homophobia and necessary social monogamy but are made especially convenient for the rulers.
Note: Original in Spanish (without translation by Google): Homofobia, monogamia y conservación de la especie.
(Este es el Artículo Nº 1.971)