Silent One: Many/most people contain within them some feelings of insecurity, however we are discussing here people that experience deep and severe levels of insecure feelings. If the insecurity is deep and severe, then it will obviously trigger extreme behavior in order to placate those feelings.
I was just saying that theoretically the only real solution is that these people address their insecurity through therapy and their behavior would then be modified. Of course I understand that the execution of this solution is extremely difficult [if not impossible] on a practical level.