Earlier quoted context omitted.
Russia's sanctions were as a result of their invasion of Ukraine and they'd still be a part of the normal financial system otherwise. It's nothing to do with petrodollars.
Apologies, but your reading of the situation is shallow. What do you think led Vlad to invade? The US has been mounting a proxy war against Russia in Ukraine for the past 20 years, one they're ready - barring political upheaval in the US - to fight down to the last European.
> proxy war against Russia in Ukraine
To a certain extent this is true, but the Ukranians have been very keen on it as they've benefited from not being a puppet state run by a corrupt president who built himself a huge palace. And Russia has no right to be "in" Ukraine in the first place.