droid, 

Okay, you actually think the assassination (your word) of Kim Jong-un is sufficient to turn North Korea into a country that will embrace the ideals of a constitutional democracy like South Korea. 

Exactly what mechanism makes this simple (again, your word) or inevitable?  Can you cite any example in the last 200 years where an entire nation-state has been completely transformed after its leader had been assassinated by an OUTSIDE power? 

I remind you that you never actually refuted my assertion that removing Kim Jong-un from the scene means we in the West will need to deal with his successor.  You've only declared that you think our issues with North Korea will be simply resolved, presumably because any successor will magically embrace Western ideals. 

I'll add that you exaggerate how willing South Korea is to reclaim the North.  The South would rather just deal with a stable capitalist and constitutional democracy rather than assume the role of welfare administrator.