There is no such thing as positive anger, just as there is no
such thing as humane killing.
Although some examples of 'positive' anger has lead to creation
of groups that bring about the end of unrighteous suppression, the
emotion of anger in itself is negative in nature. Say for example
some animal rights group have a noble cause to help animals, but
sometimes their actions to support their campaigns are violent and
besides causing others distress, their hearts are too not at peace
due to anger towards people who mistreats animals.
Anger is one of the emotions in the seven emotions - Joy, anger,
grief, fear, love, aversion and desire. These emotions affect us
and our minds cannot settle and be peaceful.
