I'm not sure it's 100%. Clearly the vast majority of pedophiles are homosexuals, and the number of homosexuals that are pedophiles is rather significant (see also Catholic Church abuse scandals). This is the 800 lb. Gorilla in the pink tutu in the living room that will be totally ignored by the media. The other big issue that will receive no play is who developed this story? from what sources?, and how long did they keep it under their hats (just to knock off a Republican with a strategically timed release/threat)?
My best guess is that there is some gay organization behind the revelation of the story and its timing. And if it could be shown that they sat on the story for the beneficial effect it would have on Democrats, then it would be clear that they tolerated the risk of a fellow with an immoral interest in children just to further their political objectives...
I don't think this is true.