Creepier yet the 1997 Spawn movie indicated this scenario as a backup plan for the DS to wipe out all humanity incase they were ever attacked dead on.

The main villain is a Demon named the Violator, who takes the role as the deepstate and disguises himself as a CLOWN until revealing his true nature later.

Even the premise ends the same, spawn ends up beating the demon by turning his own weapons against him and cutting off the demons head (cutting off the head of the ds), while disabling the doomsday mechanism.

Yes Spawn is a popular comic, but it appears there was more to this movie than just a plot line, they have been preparing this for a very long time.