Yes, but ICBMs will give him more leverage. But I seriously doubt the “He will use them.”
That would be suicide, he knows it, the world knows it. But we’ll capitulate. We always do. Seoul is held hostage by artillery, and once the ICBMs work we won’t be able to do a damned thing.
I’m not saying we shouldn’t stop them from developing ICBMs. I’m just saying they won’t be used even if fully functional. They’ll be used as leverage which is bad enough. So stop them now.
So for decades all those countries you mentioned have all been blackmailed by Norks threats, right?