“The U.S dollar remains the world reserve currency because, so far, it has no contenders.”
Unless space aliens from a world with a stronger currency land on earth, for the foreseeable future, the dollar will be the world’s reserve currency.
If that is not your view, you should take all your dollars, head to the bank and covert all your dollars to reals, pesos, euros or rubles.
I believe the Euro is the sounder currency. It is only the difficulty of acquiring Euros and using them that keeps me using dollars.
Currencies could be based on gold, lithium, cobalt or nickle.
Or silver and/or gold... and ride out the tide.
China doesn’t ‘get’ capitalism - they fake it. But not well enough to be a reserve currency ...