Dude,stop preaching about things that might not happen.
The US dollar will remain a global reserve currency with or without the corona pandemic and the corona recession.The US economy is still the strongest economy in the world and the majority of the people around the world trust the US dollar,because it is a well known and stable currency.
I'm not advocating and I'm not the biggest US dollar fan,but this is the reality.The euro and the yen aren't even close to the US dollar,in terms of global usage.