No. Big diff between a loose cannon and a nuke strike in your region. China won’t put up with that.
NORKS can’t hurt us yet.if we shoot down every test he can retaliate vs SK or China, but either would be suicidal.
Say you are right, and they can’t hurt us, and we are sure of it, but we shoot down their tests. They retaliate against SK.
Costs the US little, though the world is going to say we should have seen this coming. If half of the 63,000 artillery pieces on the DMZ work, the damage to SK is going to be substantial, though not permanent.
If they retaliate on the Chinese, that’s another matter. Nobody is going to cry much, given the Chinese gave them the weapons in the first place.
All of this hinges on the belief NK doesn’t have a nuke, and cannot deliver it. We better be right about this.