They could!? But only as a "V-I-P" collective!

Besides, what other option is there besides negotiated cooperation with China, and from a position of collective strength?

Ditto Japan and Korea, with similar issues with a much bigger neighbor?
Rhrosty.

I wonder if there are implications with Chinese government companies
buying large farming areas and then importing Chinese workers despite
our 425 laws ?
If they can ride roughshod over the Law of the Sea they can get away with anything.

There be warmongering swagger in your words S. Taggart.

Compared to Middle Kingdom China the collective power of your 3 is piddly, concerning:

- the Philippines (no modern major warships),

- Indonesia (old and/or small warships)

- Vietnam (2 active submarines + 1 new one against China's 40-60 subs).

The low world oil price is also a disincentive to fight over the South China Sea.

Take heed, for tomorrow the rising Sun glows over the Imperial Palace http://timesofsandiego.com/military/2014/08/19/top-admiral-resource-competition-chinas-rise-threaten-pacific/