This argument if accepted would follow that all oppressed people are potential mass murders and rapists, because if all Palestinians are traumatized (which I believe is likely the case), then all should be engaged in "deep seated fanatical hatred." Its simply not true that its simply a reaction and is a dangerous excuse for totalitarian-backed militant group apologisim. This does not excuse atrocities committed against Palestinians or suggest they should not fight back. But this is not that.