I don't propose for any country to be destroyed. There's enough of it going on all over the world already. War and death is not the solution.
DPRK has already been under de-facto continuous war for 67 years: the aggression of 1950-53 with 4 million dead, then economic and political sanctions, constant military threats in real life and rhetoric, you name it.
So, if there's an attack against DPRK, it'll be just a new stage. And that's exactly where it's going. DPRK will never ever budge, under any sort of external pressure. Therefore, the military attack against it is inevitable, just a matter of time. By the USA or whatever other force under control of the world powers.
The danger of DPRK to the current world order of slavery is DPRK's alternative strong ideology put into very successful practice.