I'm concerned that Trump is walking into a set-up. Recall that China takes the very long view, and in that view, North Korea is just a pawn. They might have told Kim to set up a meeting with Trump with the purpose of assassinating him, with the Norks taking the fall. The Chinese may be willing to let the Norks take whatever retribution the US doles out, happy to have eliminated the only unapologetically pro-US leader on the horizon. After Trump, the Deep State reasserts itself, western politics returns to the old normal, and China can go back to incrementally taking over.
IOW, China trades a pawn for a king.