This conflict isn't between atheism and Christianity - it's between juche and Christianity.
There is an argument here: NORTH KOREAN CHRISTIANS.com that Juche does not even include atheism, but that:
According to Juche, there is no god but Kim Il Sung, the country's "Eternal President", which makes North Korea the world's only country governed by an embalmed dead body. Juche attributes divine powers also to Kim Jong Il, the sole author, editor and interpreter of Juche.
Of course, they want to replace God with themselves, that is typical athiest fundamentalism. Close the faith schools and only espouse the dominant atheist ideology, whether communism or juche.
Its an athiest disconnect, IMO, to refuse to recognise that atheism can lead to such notions of arrogance, but Dawkins himself, with his notion of stupid theists is an excellent example.