You can't make people good just by wishing them so, I'm afraid. And while it's undoubtedly kind of you to show them mercy, if the tables are ever turned, they will not show you the same. I can't forgive them for murder, or treating people the way they do even here. I don't forgive those who have no interest in earning it. I hope that's a lesson you never have to learn, and they continue to treat you well despite how they treat others they think are beneath them. Unfortunately, they haven't shown many of us the same respect, all because of things we can't help.
He may not be the sort to you, but he's bullied me for weeks, long before I ever said a word to him. He's done the same to others. So just be careful. You can do whatever you'd like, but always keep one eye open. Your choices are your own, as are everyone else's.