Umm... North Korea poses a small, but not insignificant threat.
Wage slaves? As opposed to what? Unpaid employees of the Communist state or Subsistence Farmers in business for themselves? How is that any better?
And other countries make war all the time, it's just that we have the biggest baddest military that makes the most noise and puts on the most dazzling firepower expending lightshow so we get all the attention. That doesn't mean General Mabunga in Africa isn't still an invader and occupier of foreign lands...
I agree with you about the DPRK being a distraction from domestic issues part, though. We do have growing problems of police brutality, hyper-regulation, and coercion in society. But let's not downplay what the DPRK is, the limited threat they pose, and the fact that we are far from the only people who do bad things in the world!