I really don't think North Korea becoming a rogue nuke state 55 years later, opposed by its sponser state, China, was predictible. Rogue states come and go.
But does the average Joe, Jane, and soccer mom analyze it that way? Predictable or not, N. Korea is indeed a big threat in the minds of most Americans, and Iran in a similar way. So an argument that an early withdrawal from Korea leaving totalitarians in charge ultimately led to one of our 3 greatest current threats might resonate. Worth a shot.