With his around-the-world tour, Trump has managed to piss people off in every corner of the globe.
It was bad enough when he was doing it in the US. He's left a trail of hurt and angry former allies now reassessing the US commitment to the world. He's leaving a power vacuum that the EU, Russia and China will be quick to fill.
Reduced US integrity, accountability, and willingness to back up existing commitments means that the US will get worse deals, worse intel, and less influence.
Trump is doing what Putin or Xi Jinping could never have hoped to do...he's getting America to eat itself, destroying it with neighbor on neighbor violence, useless trade wars, and a string of broken promises to the rest of the world.