Why not link being straight to Pedophilia then?  After all, being straight may be biological just like Pedophilia.  It's special pleading to do otherwise.  The clear difference is a simple matter of consent.  A man and woman can have sex, but if a man has sex without a woman's consent, then it's considered 'wrong'.  Two men can have sex, but if a man has sex with another man without the other man's consent, then it's considered 'wrong'. A child is not capable of giving consent.  They're not mentally mature enough to.  They're also easily manipulated.  Much like if you roofie a person, it's still considered rape.  Or if you get someone too drunk where they are incapable of giving consent, it can be considered rape.  

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