I personally believe that US policy against Russia is formed inside China.
US leadership is outright owned by China, but yet, somehow, are dead set on weakening/breaking China’s partner, Russia.
That makes no sense unless a weak Russia is in China’s interest. Perhaps China wants to drive Russia into its sphere of influence, but why, given it already owns the most powerful country... the US, does China need Russia?
I think China wants to break up Russia and in the process grab Russia’s Far East. Right next to China’s largest corn producing province (Heilongjiang) is Russia’s largest soybean producing oblast (Amur).
If Russia and the US fight, China wins. If the US loses, China is the most powerful country. If Russia loses, China grabs Russian land.
I think the US is the tool China is using to attack Russia.
Russia and China have been close allies since Soviet times, even during the so-called Sino-Soviet split, which was a propaganda operation per defectors like Anatoliy Golitsyn.
If China wanted Russia out of the way, they could ally with the USA, their cash cow, instead of doing military maneuvers with Russia aimed at the United States.