I don't think paedophilia is fine and dandy. It can be dangerous and result in sexual assault (assuming that not all paedophiles carry acts out). It should not be viewed as an 'acceptable' sexual orientation, as it cannot be between consenting adults.
However, it is out there, and has to be countenanced, however, unpleasant.
As a thought experiment, and nothing more, imagine a manufacturer of lifelike dogs or cats. These stuffed, inanimate objects can be bought for the owner to treat as they wish. Some buyers kick and beat the object. It is found that the RSPCA notices a subsequent dramatic decline in abused cats and dogs over a prolonged period. Would it be worth further investigation, to try to establish causation? As with all thought experiments, the usual disclaimers apply - cats and dogs are not human, etc etc.
I am curious as to whether anyone feels that personal revulsion should trump scientific research into unpleasant subjects, in cases where scientific methods might alleviate human suffering in the long term. It applies to other areas, not just this specific article.