It is a huge mistake to characterize a kid who is behaving badly and bullying as evil. First, it gives them more power over our imaginations then is warranted. And second, it prevents us from doing what we should be doing to stop them.
Conflicts aren’t a problem if both people are behaving civilly and professionally. They only become a problem if one or both parties start behaving inappropriately. The problem then isn’t conflict resolution. It’s inappropriate behavior.