>>51922722When is a fetish a fetish and not a sexual orientation? Is an attraction towards women as a straight man fetishism? Is homosexuality fetishism? Would you say a person who can only be aroused by dogs has a sexual orientation towards canines or a fur fetish?
The truth is we don't know why some people end up as pedophiles. The idea that all deviant sexual behavior arises externally has yet to be definitively proven. Personally, while I believe nurture has a hand in shaping the psyche of people, nature remains the dominant force behind developing sexual interests.
tl;dr lolicons exist in a vacuum.