> Today. But maybe not tomorrow. India, Vietnam, Brazil, and a dozen other countries are more than willing to take on that production. Heck, most of Apple's contractors in China (think Foxconn) already have manufacturing in other countries.

That isn't an easy thing to do and it certainly wouldn't give Tim Cook any leverage. It would take them probably a decade to fully move their pipeline out of China and even if they did it, it would be very capital intensive so even if it was cheaper it would take quite some time to recoup those costs (and I'm not really convinced it would be cheaper overall but that's a separate exercise).