I think you are reading the situation incorrectly. The US was previously the center of international collaboration for science and technology, and that took decades to establish.
The organization has been burnt down in 12 months, but the expertise still exists. There are signs that the international community will finally start working on climate change now that the US has pulled out of the treaties. The Chinese are a decade ahead of the west when it comes to building cars.
The WHO admits they screwed this outbreak handling up badly, but, by my understanding, they screwed up less than the US did in Wuhan in 2019, and they’re exhibiting the will to improve instead of shifting blame (remember all the “investigations” of the Chinese biological weapons research programs that were co-funded and co-operated by the US with federal funds?)
I think we’re going to see some more dark years before a one-two punch that improves things dramatically:
1) international organizations step up to fill the vacuum the US left
2) After the 2026-2028 new Dust Bowl / Great Depression the US is heading into, voters (state and federal) in the US are going to demand progressive and populist candidates that will actually attempt to put the US back on competitive economic footing.