The uncomfortable conclusion I've come to recently: the world (and especially the US) has come to terms with a nuclear-armed North Korea being the least bad option in this whole ordeal. Sure, we still need to pass sanctions and throw around words like "unacceptable" a lot for PR purposes. But we've ultimately accepted that there's nothing we can do to stop Kim from getting nukes that doesn't involve laying waste to most of the Korean peninsula, a massive refugee crisis, and the potential that the conflict will already go nuclear.
I frankly doubt so. The same problem will happen with Iran within 10-20 years. Either USA resigns on maintaining its own safety/defense or it will use NK as a beta-test for all future wars. With SU you could have still expected rational actors; these days it seems like insanity is the new normal and future looks unstable.
