What IMF chief is saying - is very true! It will not just reduce the dominance of USD but it will allow various countries to use their local currencies than using USD. Crypto is not probably the best medium of exchange for international trade. But local currencies will definitely become useful to bypass the SWIFT ban.
I sometime laugh on the hypocrisy shown by US and UK. These two countries are responsible for most number of wars in the history of mankind. Now they are trying to impose sanctions because some other country is trying to protect their sovereignty by not allowing NATO to install weapons at their border.
The United States and Great Britain did not unleash a war in Ukraine. The aggressor country is the Russian Federation. Your reasoning is interesting: Ukraine, neighboring Russia, has declared that it wants to join NATO, therefore a military attack on it, the destruction of its infrastructure, residential buildings, schools, hospitals, women and children, is justified, because NATO weapons will be placed on the territory of Ukraine.
Russia shares borders with Latvia, Lithuania and Estonia, which have long been members of NATO. For some reason, Russia had not previously reacted in this way, and NATO weapons on the borders of Russia did not cause such aggression. Obviously, this justification of war is wrong. And any attack on a neighboring country that clearly does not threaten Russia is still aggression and a violation of all international norms. Therefore, the civilized world has united against Russia and is helping Ukraine to defend its freedom and independence with weapons.