It seems like China would take some action regarding this, not that we would know of it or see it, but it does seem like they would not accept this as a real policy.
One would think the retaliatory nuclear strikes on North Korea would spread radiation into China.
I don’t believe the ChiComs would be happy with that scenario.
This is a dead letter. If KJU is dead, whoever is left in power would be most focused on staying alive. Why would the successor pay any attention to this new Constitutional requirement.