> Its baffling that you think the collapse of the USD would have no negative ramifications on the rest of the world.

Empires rise and fall, pax Americana was not the world's first hegemony. The end of the British Empire is within living memory - while they sowed seeds of instability in a handful of former colonies that still flare up today, the rest of the world is fine. Britain, on the other hand, has had to enter a "managed decline", and is a much smaller player in world politics than it was a century ago.