Are you able to consider North Korea's situation on its own merits, rather than harping on the deeds of the United States? Can't the Kim family dynasty be brutal and oppressive independently of the US? I think that they can be, and have proven it.
I suggest you look at the material that comes out of North Korea, from human rights groups and the like. The "rumours" of how life is inside of North Korea are backed by very credible evidence. Much less evidence exists to support the claims made by North Korea's government. Or do you think that there were actually celestial events to herald the birth of Kim Jong-Il?