China is powerful but China will not be able to take on the western world at once. If China decides to join open confrontation with the west like it was during the Cold War then just forget it, China will hang on for a bit but ultimately lose. Folks need to understand that as powerful as China has become the collective west is still immensely powerful and has a huge psychological grip on the world. China should continue doing what it's doing and should avoid open confrontation with the west. It should make the developing countries very dependent on it economically, keep playing down any Cold War (because there isn't any), all the while modernizing itself.
The west is closing itself off and building walls? China should open up and accept visitors (like it is currently doing). West is kicking students out, China should open its schools and make it attractive to study and provide a cheaper option for students from developing countries. China needs to increase consumption though, it needs to rebalance its economy and make its large market even more attractive, that will help reduce the appetite for war from the western countries.
China only cares about 1st and 2nd chain island and the pacific west. The only opponents in the pacific is a limited Philippine, US navy, limited Australia and Japan. I think China can take out all of them. Once Taiwan is captured, China has opened the gateway to the pacific west.
Philippine has no navy and all they can do is to launch missile provided by the US.