And no there shouldn't be a debate if N. Korea should be allowed to attain nuclear weapons this isn't an issue for debate, my stance on that would be similar even if it was Iceland but if we were talking about them I would at least humor the possibility.
North Korea is and I can't believe I'm using Trump's rhetoric to put it mildly a shit hole run by a an absolute turd and that is if we are lucky and he actually has a grip on the situation.
It's also a fallacy that some world wide consensus or justification is either needed, warranted or even wanted. The majority of the world's population doesn't care about N. Korea, nor should they. The only consensus that matters in this regards is the one between NATO, Russia, China, S. Korea and Japan with a warm FYSA to India and Pakistan.