People look for a fight when they're angry, and when they feel in danger (at some level of their psyche). Young people often feel that way. We mellow a bit as we get older.

I figure if I want peace in the World I must become peace in the World. How do I do that? Be becoming more peaceful, day by day, not only in my outward behaviour but in my inward thought. It's a worthwhile process.

I suspect Kirsten is younger than many of us are. She's definitely very aware of social injustice (had a look at her website), and that can fuel a lot of anger. That's understandable.