I would pi** on your shoes while you wear them boy.
Well, you might know how to do that much. Maybe.
If the world stopped trading oil in US dollars then all those externally held dollars start coming home to roost.
Economic Armageddon my friend...
The Saudis could agree to trade oil in other currencies any time. This is the sword of Damocles they hold over us. It’s NOT important that we can produce enough oil domestically to supply our needs... we gotta keep those external dollars from coming home!