David, it sounds to me-and forgive me if I haven't read all your posts as carefully as I should--as if you are blaming targets for their vulnerability?
   The world has all different kinds of people and I, for one, think vulnerability is an essential part of humanity.
    Some people are lucky to be thick-skinned, or to be able to ignore hurtful provocation, but not all are. And who would stand up against all kinds of injustice and dehumanizing treatment if those who were hurt did not make their voices heard?

I would like to hear more stories about how people have defeated bullies--thanks for those already posted...