Washington has never made any effort to conceal its contempt for North Korea. In the 64 years since the war ended, the US has done everything in its power to punish, humiliate and inflict pain on the Communist country. Washington has subjected the DPRK to starvation, prevented its government from accessing foreign capital and markets, strangled its economy with crippling economic sanctions, and installed lethal missile systems and military bases on their doorstep.
Negotiations aren’t possible because Washington refuses to sit down with a country which it sees as its inferior. Instead, the US has strong-armed China to do its bidding by using their diplomats as interlocutors who are expected to convey Washington’s ultimatums as threateningly as possible. The hope, of course, is that Pyongyang will cave in to Uncle Sam’s bullying and do what they are told.
But the North has never succumbed to US intimidation and there’s no sign that it will. Instead, they have developed a small arsenal of nuclear weapons to defend themselves in the event that the US tries to assert its dominance by launching another war.
There’s no country in the world that needs nuclear weapons more than North Korea. Brainwashed Americans, who get their news from FOX or CNN, may differ on this point, but if a hostile nation deployed carrier strike-groups off the coast of California while conducting massive war games on the Mexican border (with the express intention of scaring the shit of people) then they might see things differently. They might see the value of having a few nuclear weapons to deter that hostile nation from doing something really stupid.