The vicious mocking of Kim is only a result of senseless cultural arrogance.
It's unusual to see such a blatant case of the pot calling the kettle black. North Korea's cultural arrogance just can't seem to comprehend that not everyone thinks as they do about mocking heads of State that do absurdly dumb things.
For some bizarre reason, North Koreans seem to think that worshipping stupidity is a virtue. Idiocy deserves to be derided, and their leadership is chock full of idiots.