He is right in the sense that we should love our enemies and pray for them. Sometimes, in this case, we should kill them too.
When General Jackson was asked by one of his officers what could be done about those Evil Yankees looting after winning a battle; his response was, “KILL’EM KILL’EM ALL”.
So of course we should love and forgive all of our enemies, just as soon as we “KILL’EM KILL’EM ALL”.