It is, as always, projection. Reminder that more bombs were dropped on DPRK than during the entire World War II Pacific campaign. The US destroyed nearly every building in the entire country and killed around 282,000 people, 20% of the population. They literally ran out of targets to bomb.
June 25, 1951, General O'Donnell, Commander of the Far Eastern Air Force (FEAF) Bomber Command, testified (in answer to a question from Senator John C. Stennis, "North Korea has been virtually destroyed, hasn't it?"): "Oh, yes; …I would say that the entire, almost the entire Korean Peninsula is just a terrible mess. Everything is destroyed. There is nothing standing worthy of the name… Just before the Chinese came in we were grounded. There were no more targets in Korea."