Anger comes in two forms.
That born of the True Self, the Divine Self, one’s own True Nature, which commands the world to align with Natural Law.
And that born of the conditioned, programmed, personality self, with which most are identified and which demands the world conform to its petty will.
Based upon observation, the latter almost always perceives itself to be the former.
Even when one knows it to be the latter, the individual is rarely able to confess to that… particularly to those most deserving of the confession.