Chinese don't care, they don't want war with the US but are just watching with interest on how actual war is playing out, especially how US defensive capability is being degraded.
Why China and Russia don't help Iran by joining wars against the US.
China in 2021 outsourced their war with the west to Russia, when China greenlighted the Russian War on Ukraine. Putin has no mission to defeat Israel or America. Putin is tasked with defeating and humiliating Europe to the cheers of trump and Republicans. China wants to make money and trump is 100% praise of China, while the US plans a golden dome to defeat Chinese missile capabilities.
Before 2021, Chinese were wanting a war with trump and saying they want trump continually in the white house (terrorizing nations) because China wants to confront the US. It seemed to be nothing more than a dog barking fearfully at an intruder. China was likely promised by Kissinger and the Jews to reign with trump if China is a team player.
China benefits from things that benefit the US: UN SC (remember China sold out Iraq twice, Libya and Syria in the UN SC by not vetoing resolutions that led to war; the strangling of Iran in the UN SC was supported by China), stable markets, digitization of money, surveillance state. China is responsible, and that means China does not want any trouble with daddy America and daddy trump. As Chinese condemn Europeans that did that since the defeat of WWII.
There is no reasoning with the Chinese, US is very weak now, has been since 2021. China has not done a massive rearmament. China is not bullying trump monetarily with gold and silver. China is not doing geopolitical bullying.
China and Russia never want Israel destroyed, both are focused on the rival the EU. China and Russia don't have wars with America to defeat the American Empire. China supplies Russia to defeat Ukraine and later Europe.
Why doesn't putin target and destroy US bases in Europe to kick out the Americans? Iran does in its region. Because trump is fine with Europe getting bullied, trump wants Greenland, trump was ok with the war in Ukraine, cheering against Biden.
Russia and China play it safe and only have wars that are kosher certified and maga certified.
This is why Iran and the Houthis are courageous, and Russia and China are cowards. Rich Chinese trade empire risks too much in challenging the US, except for regional influence.