It's OK to disagree. I think that Pompeo and Bolton's rhetoric is designed to scare us and force NK to come to the negotiating table.
Pompeo and Bolton are known Zionists - I believe they are working to denuclearize whichever countries they can in order to protect Isreal's interest first, then the US' second.
NK knows that if they attack they will be wiped off of the map. Personally I do not blame NK for having nuclear weapons as we wiped out 10% of their population in the Korean War.
Nukes are a deterrent against foreign aggression. I think NK has them and shows them off to protect themselves from potential invaders.