One could make the case that to counter balance the threat of a nuclear North Korea we should station or allow friendly local countries to have their own nuclear arsenals. South Korea, Japan, Taiwan, and the Philippines come to mind.
Perhaps the mere threat of a nuclear Philippines and Taiwan will give China cause to be more persuasive in its suggestions to Rocketman?
Taiwan has had a Nuclear Arsenal since the early eighties.
Like Israel, they don’t use it for saber rattling.