Maybe a combination of Capitalism, freedom of speech, the Bill of Rights, and, yeah - Divine Providence. The combination makes us flexible and quick on our feet in a pinch.
People like Xi don't understand how we can have a corrupt idiot like Joe Biden with his 109 IQ running the country - and military leaders who got their jobs based on sexual kink - AND still out-compete them.
I think what frightened Xi the most was how quickly the US picked after just three years of Trump. It took an engineered virus panic, a years long soft coup attempt by the DOJ and the Democrats, and massive vote fraud to get him out of office. Plus RINO accomplices like Pence, McConnell and others who simply rolled over for all of it.