Russia has only turned off the tap after Europe had already turned off every possible economical tap flowing in the direction of Russia, so in a sense, Europe did it all by itself. Sure, it's the right thing to do for Europe as no one want to help Russia sponsor the war on Ukraine... but that doesn't change the fact that Russia wouldn't just turn off the tap without Europe turning highly hostile to it and basically leaving Russia no option (it's costing much more to Russia than to Europe).