I don't think Kim cares about religion one way or another; I think he simply sees it as a threat. For example, a Muslim may resist ever referring to Kim as his "Supreme Leader", instead believing that only Allah is supreme.
Religion has a way of building up a resistance against outside forces; faith can be a powerful thing, even in the face of torture. I don't think Kim ...[text shortened]... religion can bind believers in nearly unbreakable ways; ways that can be problematic for a dictator.
(Vivify replied to Ponderable.)
While there's a cult of personality around the Kims (three so far) who have ruled the DPRK,
they have NOT claimed divine status. North Koreans are not taught to regard Kim Jong-un
as a 'living god' like the Japanese were taught to regard Emperor Hirohito as one.
Stalin enjoyed a similar cult personality. In the Great Patriotic War, many Muslims
fought bravely or died for Stalin and the USSR.