After the election my very first thought was that this is the start of the Chinese century, since America has voted to step down.
Seems to be playing out.
No other country punches itself in the face as hard or as often as the usa does.
Unfortunately there is another possibility: a return to great power competition.
The US situation is mitigated by both Russia and China deciding to make massive, foolish maneuvers at the same time as ours. However neither can match how stupendously we are lighting our future on fire in every possible dimension.