Bucho, from your perspective indeed SANE nuclear armed countries realize the no win results of a nuclear weapons contest. And yes, China has declared non-support of N. Korea instigating any nuclear weapon war events, but it appears the pre-emptive wild card is now the USA. The whole purpose of the suggested petition is to disperse the authority of nuclear deployment among our entire lawmaking body instead of ONE MAN displaying a disturbing deterioration of sensibilities. The successful divide and conquer strategists who split the American citizenry into bickering "Left" and "Right" apparently prioritize more important issues than preventing WW 3. A preemptive nuke into N. Korea, or another country the USA has invaded already might leave China and Russia with no face saving option but retaliation in support of their allies.
No need to invade the USA, we're falling apart from within. Must be amusing to view that from the outside. Personally, from the middle, I am appalled that we are no longer "fellow Americans".