That's because female-to-male pedophilia is 99% desired by the "victim." It's rare for a guy molesting kids to have them tell the police they were willing participants in the entire enterprise.
Also, men are America's favorite punching bags. It's why the courts give custody to the mothers. It's why the cops usually arrest the man if both parties were in a fight in a domestic situation. It's why it's ok for women to hit men but if a guy hits back, 5 people tackle him. Face it, we're superior creatures so we have a higher burden on our public behavior.