YES, I support the US. Those Chinks are getting bolder and out of hand, behaving exactly like the Japanese Emperor during WWII. It was the greed of him wanting to conquer the whole of Asia that eventually lead to the downfall of Japan with 2 Atomic bombs, thus destroying its own people in the process before he relented to surrendering.
The Chinks should also be taught in a similar manner. Don't forget that they are now claiming that the WHOLE of the South China Sea is also theirs.
Don't think US and china will ever wage a war over a chain of 7 sq km uninhabited islands. Too much is at stake between the 2 nuclear powers.
US will only be happy to reap the benefits of 2 neighbors not getting along well but not to the extend of having an armed conflict and get drag in.
If there is one, I doubt very much US will want to get involve directly. Not in the sense of sending warships and fighter jets but offer intelligence to their ally at best.