Do you mean that dialogue and not violence is a better way to solve problems?
It depends on the problem, right? Imagine you want to kill me, and I want to kill you. There's no way to solve that problem equitably. Now realize this is a problem that people in the real world face. Erdogan had a coup attempt against him, and Assad has half his country wanting to kill him. His solution is to kill them first, which thus far has been effective. Then of course ISIS just wants to kill nearly everyone. In fact, they believe it is the will of God, and he is on their side.
Dialogue is not always an option, and even when it is, sometimes lawsuits work better which carries the implied threat of violence (from the state).