Beijing has already begun contemplating ‘decapitation’ strikes against the dictatorsh

[guohua]

Hard to know what to make of it, @"guohua" .  Hermit Kingdom is so very hermetic.

Do you think the PRC killed Kim and replaced him with a doppelganger ?

Cheers

Yes, the Hardline Communist with the Approval of the CCP would Dispose of him and his wife and family if he was actively attempting to be more open or cooperative with the USA.
Once a Puppet always a Puppet.