aside from killing a lot of North Koreans who are merely slaves to the regime, it hardly seems reasonable to destroy facilities we helped them build. Never mind our creditor, and the principal manufacturer of our non-defense, non-perishable, imports protects their puppet.
A better result would be (in the magic fairy land where Demokkkrats do good): Call up the Chinese and threaten to default unless the NK's allow immigration, free speech, trade, and close the prison camps.
A carrot/stick for the King: pick the Marcos way out or the Osama way out.
It'll will never happen, but if the Chinese thought we might actually go back to making our own dam plasmas I suspect King wacko would be getting an offer he couldn't refuse.