I don't think he's crazy. He's clever, and is doing what North Korea has been doing since the Armistice; skillful brinkmanship. The regime is brutal, criminal and their government system is nonsensical, but there's method to the madness. The evolving nuclear capability, real or imagined of the regime, is just part of the pattern. I could've sworn reading somewhere that even without nukes, they'd just chemically shell or dirty bomb Seoul - lord knows it's within arty range. The problem is the same, it's just evolving. North Korea makes us ask "at what cost?" an inevitable allied military victory would bring.
I've always believed that if North Korea snapped, we'd have no opportunity to do a pre-emptive attack because of how vulnerable Seoul is. It's a scary thought.
The rinse-repeat of saber rattling followed by concessions (usually in the form of humanitarian aid) shows that North Korea understands what they have to do to continue to exist. They've positioned themselves so that unilateral military action against them is considered too dangerous and waiting for them to wither on the vine is simply unacceptable to China - who believes they will have to deal with a refugee crisis.
Frankly it's probably making granpappy proud; Kim Il-Sung played both the Soviets and the Chinese like a violin. Expelling Soviet advisors and threatening to go to a dissonant China for help, then turning around and doing the same thing to China. It's the same game with different players.
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I like Binkhov's videos though, even if I don't always buy into them.