Buddy, non stutterers are not privileged people, they are people with their own problems just like everyone else. Sure, we have problems in an area that the vast majority of people don't even think about, but saying 'shame' is bit much, don't you think? Back on topic, it's unlikely that a cure for stuttering will be invented, as I doubt it's been studied to the extent necessary, and no one seems interested in doing so, it's like a vicious circle.