I tried to see from China's point of view why China did not participate in carrying out economic sanctions like America, Britain, Australia, Japan etc. It turned out that it was because they thought that what America was doing was illegal because it was based on a unilateral decision. He even said that since 2011 America has imposed sanctions on Russia 100 times, perhaps because of that Russia is still stable even though it is limited by several countries because they feel they are used to it.
And also, it's simple that they're allied with Russia.
An ally won't do sanction if they've been partners for a long time. But as well as the competition for these superpowers has been there for a long time.
The advantage is with China that they'd bring help to the economy of Russia.
The interests of Russia and China are aligned, if they could they would like tho see the US no longer as the top superpower of the world, but if that is not possible they would at least like for the US to lose some of its power.
And it is because of this their postures towards bitcoin are ever-changing, they dislike the idea of people bypassing their monitoring tools, but they love the idea of using bitcoin to weaken the control the US has over the world economy and try to get around whatever sanctions the US may implement against them in the future by using an independent tool like bitcoin.