I agree that there is a lot of propaganda being directed against the DPRK by the western mainstream media. That said, we can't ignore the fact that Kim Jong Un is being arrogant and rude. There was no need to conduct all those nuclear tests and missile launches at this point of time, when the relations are strained beyond the limit.
I think he does not understand that the situation is heating up to the limit. He himself created the myth that Americans are afraid of his nuclear bombs and believes that they will not dare it to strike. Stupid pig! I hope that he wouldn't live long.