Which is all bullshit.
China most wants Formosa back in the fold and it is the USA that is allowing it to continue in defiance of Beijing, not Russia. The USA is also close allies with Chinas most hated enemy, Japan.
Your ignorance about history and geopolitics is only surpassed by your arrogance and blindness to your own failure to grasp the topic.
Well, let's just see about all that...
My understanding of history and geopolitics comes from, in part, a degree in Political Science, 20 years of teaching history (among other subjects), experience living in both China and Japan, working closely with Russian, Chinese, Taiwanese, Japanese, Korean, and any other nationality even tangentially related to all this and being told of their experiences and feelings directly and repeatedly as recently as about 6 hours ago.
Japan is an "enemy" of convenience for the CCP whenever they need one. Vietnam is more of a real enemy to China today in any meaningful way (which is slight) than Japan. The animosity between China and Russia is well understood if not deeply imbued in anyone in either country over the age of 40.
These are all things I know because I have actually studied them, and because I actually interact with people representative of the parties in question on a very, very regular basis.
Do you feel stupid enough yet, or do you need more?