User blog comment:Fintin/Final Enemy/@comment-1595565-20140322222317/@comment-7890302-20140323052155

Well, as we have seen from Dragon, he has shown brutal force.

Kuma joining the Warlords, must be a plan, and it involves Kuma's 'death'. Meaning, he was fine with killing his friends, to give to his cause. The complete opposite, of Luffy, who will never forget his cause... Unless it means harm to his friends.