Yes, most revolutions will fail. But as far as we're concerned, the proper response to a stranger trying to steal your children is "Over my dead body."

It's a little ironic that the 'defection' here is the act of not having the "Over my dead body" reaction when successful defiance is not realistic. If other people go about doing suicidal defiance you get most of the deterrence benefits and at least get to live on and have more childeren!