If the rest of the world needs America's help

They wont, and honestly, they probably won't have to because the rest of the developed world is quickly surpassing the U.S. in almost every metric for happiness, political culture and health care.

You're so convinced of American exceptionalism you think the rest of the world just can't live without the U.S. But they'll have to learn to, because current leadership is giving them no choice, and now all these unions and multilateral institutions the U.S. has been frontrunning and leading, cultivating for decades, are being handed over to whoever wants them. Decades of work and diplomacy are just being flushed down the toilet or given to our adversaries. And you think everything's fine, because America is number #1. USA. USA. USA.

If anything, the rest of the world will have to unite against the U.S. to stop whatever the fuck Trump and co. have planned for the future.