If I was the US and new the current USD hegemony can't last forever I would demonetize gold and buy up as much Bitcoin as possible.

If I were BRICS+ nation's I would want to signal a move to gold to force the US to adopt Bitcoin.

Once a move is made to Bitcoin it would allow BRICS+ to compete in the worlds first global free market with a fair set of rules. They are energy rich net producing nations that probably feel they can outcompete the US and have the Bitcoin distribute to them over time.