Xi has just been handed Taiwan on a platter. As long as he doesn’t endanger the semiconductor factories the US rely on, Trump isn’t going to lift a finger to help them… unless they sign over control of said semiconductor factories, in a “joint” partnership.

While what you say is likely, if Iran was to do that, Israel would turn Tehran into a giant night light.

Escalating to nuclear weapons in any form would be madness for either side.