Anger is loaded with information and energy.
I have suckled the wolf's lip of anger and I have used it for illumination, laughter, protection, fire in places where there was no light, no food, no sisters, no quarter.
Anger is an appropriate reaction to racist attitudes, as is fury when the actions arising from those attitudes do not change.
Hatred is the fury of those who do not share our goals, and its object is death and destruction. Anger is a grief of distortions between peers, and its object is change.
My fear of anger taught me nothing.