North Korea is like WWII Japan ,you can’t negotiate
You mean, North Korea has an extensive navy with carriers and submarines and a modern air force, along with a large army? North Korea has already invaded and conquered which territories? North Korea is a threat, not an active combatant.
Trump won the negotiating already, by getting the PRC on board to squeeze rocket man in exchange for favorable trade relations, and by calling him “rocket man”. It’s just a matter of time. The US can always blow him sky high. Being a super power, you get to do that, which means you don’t have to just yet.