There is no "WW3" if one side is just russia.
China will use this opportunity to take back Taiwan. The US cannot fight two wars vs Russia and China.
China knows that if they let Russia be defeated, then they are next.
US is winning conventional war with Russia without losing a single soldier and using 1-2% of what they spend on Iraq war.
>China will use this opportunity to take back Taiwan.
Sure, "take back". Use factual words - invade.
>China knows that if they let Russia be defeated, then they are next.
Next of what? Being defeated when they rush into extremely aggressive, genocidal war? They need to be sure of that, yes. Russia's loss is 100% self inflicted.