Trump is personally vested in the notion of a “win” here. He’s not personally vested in any actually strategic benefit to the US… So it’s perfectly acceptable to him to just let North Korea have whatever it wants, and declare things a victory.
And so that’s what will happen. We’ll make concessions, and receive nothing at all in return. Trump will declare a victory, and his supporters will cheer, because they are fucking be imbeciles.