But now the US is even destroying confidence in the dollar, through its confiscation of the Afgan central bank reserves (which included private citizens' deposit accounts) and distributing the money to families of Sept 11th victims; or freezing the Russian central bank reserves, even though the international settlement system was meant to be apolitical.
“Apolitical” does not mean “usable by any party for any transaction.” SWIFT policy prohibits using its system in support of illegal activity [0], and the settlement system has been denied to sanctioned countries before [1].
[0]: https://www.swift.com/about-us/legal/compliance-0/fighting-i...
[1]: https://www.aljazeera.com/economy/2018/11/5/what-swift-is-an...
If BRICS launches their own basket of currency that will be the first major salvo at USD.
The further a society drifts from truth, the more they will hate those who speak it.
You're misunderstanding the fundamental problem. It's not about a "shortage" of USD for Ghana, where they ran out of USD suppliers and no one is willing to sell them USD so they will need to switch to RUB.
You get USD by exporting stuff and you can import stuff when you spend USD. The fundamental problem for Ghana is that they need to import valuable stuff but they are running out of valuable stuff to export in exchange, hence their USD reserves are dwindling. You can't solve that problem by changing the currency. If someone is to give you their RUB, they'll still want valuable stuff in exchange.
Countries have resources thus commodities. Commodities have value. Real value.
Trade in local currencies can be backed by these commodities.
Necessity will force countries to find USD alternatives.