Kim never did anything to earn his position, except be born Son of a dictator. Nothing Big Boy about that at all. Trump, POS narcissist punk that he is, at least conned and bullied enough people to vote for him to get the top job. IMO, neither of the two are worthy of their present titles. The world would be a better place without them.
He is still alive because he is insignificant until NOW. Now he is no longer insignificant. Now he has our attention. Now he'd better have an exit plan if he doesn't intend to back down.