You might be interested in the book 'The Righteous Mind' by Jonathan Haidt... he talks about that group psychology, and the importance of having social contexts where those energies can be expressed in a non-destructive way - such as college/city sports teams.
Also, do you have a reading recommendation for learning more about that aspect of Martin Luther King Jr. and his compatriots?
Also, do you have a reading recommendation for learning more about that aspect of Martin Luther King Jr. and his compatriots?