Strictly speaking, that Presidential race was not enough, since Trump alone would have been far-more survivable. A mere repeat of 2016-2020 would have been shameful and humiliating, but not the same kind of diplomatic self-implosion.
What is enough involves the outcomes of other elections/candidates, where almost all the Republican party decided that this time around they were going to go into full-steam ahead with Trump's whims and crimes.
He has, as predicted, destroyed the very idea of America, and all those who voted for him and are collaborating with him deserve the consequences, particularly his followers who he reliably uses then betrays. I feel sorry for the people who didn’t vote for him though, the slide into fascism is beginning and many don’t recognise it yet.
Enough to condemn the US forever in the eyes of the world. It’s no longer seen as a reliable ally or a desirable destination by the majority around the world.