No one is what they should be in this world. It is a world of people living lies because they are so scared of the truth all of the time. Like any animal they are so frightened of feeling pain that they have to hide themselves and lash out when they feel vulnerable. You cannot blame them any more than you can blame a stressed dog or any other frightened animals for biting you or clawing you. Or even blame a bear or mountain lion for attacking you. The idea that humans are different from any particular animal is mostly arrogant human delusions that they take comfort in.