I think you kind of missed what I said upthread. Specifically if they had our resources (size, location, resources).
So, if they had the resources the US has, I very strongly suspect they would be more muscularly assertive than we are when it comes to world affairs --as I pointed, out, even at their reduced size and power, they desire quite a bit.
Also, correction, China is not only rattling sabers with Taiwan, but Philippines, Vietnam, Japan too.