What you are trying to point is the extreme elements of the larger shia community. That kind of nonsense even happens with sunni muslims. In fact sunni muslims are totally spineless and very crude in character these days. If this wasn't true then the greater larger muslim body today wouldn't be stumbling headless. If the chain of khilafa was true, and the actions of the first khalifa was pure then today that chain would have continued. Obviously it broke off. Are you going to sit there and tell me otherwise?