It's the best known country in the world. It's the most famous one. As a result chances are for a lot of people on this planet the people they admire the most and the people they despise the most will contain a lot of Americans.
I'm from the Netherlands. When we elect an idiot he falls of a skateboard and says something stupid. When Americans elect an idiot a country gets bombed or the world economy almost collapses.
It's too easy for the rest of the west to put all blame on the US. On the other hand: to be the leader of the free world was the ambition of the US for a long time. That does come with more responsibility.
If they dont want to carry all that responsibility by themselves one of the things that has got to go too is the American Exceptionalism. You can't have your cake and eat it too. The position came with both responsibilities and privileges.
And maybe it would be nice to a formal letter of resignation in that case.