China doesn't even have a single nuclear aircraft carrier. They have no oil, they get most of their oil from the middle east through the Straits of Malacca, which the US could shut down at will. The United States ensured, after WWII, that we would remain the premier power on the planet for a long time. Saudi Arabia is protected by US Patriot missile batteries, despite all this bluster about BRICS, the Saudis know exactly who affords them the protection for then to sleep at night. China is watching the Ukrainian conflict, and is taking notice of the superiority of the Wests arsenal and the likely cost of invading Taiwan.