Korea's situation is amplifying. We know this. North Korea is making more threats than ever with it's "boy king" on the iron clad throne. We know that military options are 1. relevant and 2. undesirable. The Pentagon consistently barks about "military options", while "economic options" stay on the table—don't overlook how talk of military bolsters economic action. Rather than reviewing the obvious, consider North Korea through the eyes of the White House—viewing both economics and security—and from the rest of the world.
As the Pentagon, economists, and surrounding nations sees things, not China, but specifically the Communist Party seated in Beijing, is viewed as the "menace of Asia", venturing into increased trouble with Vietnam, India, the Philippines, Japan, South Korea, Taiwan, Myanmar, Malaysia, Mongolia, Africa, Europe, and others. North Korea has six months of oil remaining, and China does 90% of North Korea's trade. No Beijing Communist Party feeding the Kim Dynasty equals no Kim Dynasty nukes. That's how the Pentagon, the US Treasury, and many surrounding nations view China and North Korea.
It will never be said, just as much as it will always be considered: North Korea is a stepping stone to facing the Beijing Communist Party. For the Pentagon, it's practice and demonstration. For economics, North Korea is an excuse to cut off trade with China who manufactures technology, but does not develop their own, and uses copied technology with trade money to make it more difficult for their neighbors to sleep at night. Right or wrong, justified or not, that's how others view China these days.
Now, Xi Jinping addresses an assembly over the BRICS bank group, while still not having dealt with the menace in its own back yard. Without a word being mentioned, Brazil, Russia, India, and South Africa—and the nations who trade with them—will view China as being the "maker of promises that won't be kept".
China had so much going for it, as did the Communist Party in Beijing. They had trade, they had marked-off territory that no one encroached. But, it wasn't "what they deserved by rite", thereby provoking them into too much venture and not enough housecleaning. Make no mistake, North Korea is only the tip of the iceberg marking regional vendettas that loom beneath the surface, both militarily and economically. The US is not as friendly as it seems, "considering either" economics "or" military; it has already been implementing both as part of a greater regional ambition.