All the hostility of western governments and the FON ops western navies have been conduction in the region is a perfect example of the total lack of finess, imagination and coherent strategy on the part of the west in dealing with China.
By immediately being irrationally and unreasonably hostile in its rhetoric to China's island building, and by jumping in at the deep end with its response and employing the most extreme measures reasonably possible, the US has actually achieved nothing concrete at the expense of wasting almost all its bargaining chips, while at the same time giving the Chinese military all the cover and pretext it needs to arm those islands to the back teeth.
What the US should have done was express their concerns repeatedly and clearly. And asked the Chinese to clarify their position and intentions, both in terms of the territorial implications of the new islands, as well as their intended use.
By not answering those reasonable questions asked in a calm and measured way, China would have lost credibility and diplomatic leverage.
If China had answered, it's answer would have been reasonable and focused on the peaceful nature of its intentions and the civilian benefits of the islands.
The US could then hand effectively locked China in on those early promises by agreeing to implicitly recognise the new islands up to the internationally acceptable safety limits allowed, limiting them to primarily civilian use, and maybe even opening them up to international use.
These are not things I have just made up, they were all mentioned by the Chinese government early on, but have not been repeated since.
That gives you an idea to the great lengths China was prepared to go to be accommodating initially.
All that early goodwill has now been needlessly destroyed by the baseless accusations the US has flung China's way, and by the extremely hostile nature of military FON.
The only things the US has managed to achieve with its angry words and deeds is cut the legs out from under those in the Chinese government urging compromise and restraint.
Now the prevailing view is that if you have already been wrongly accused and convicted of the crime, you might as well do the deed since there is actually little else left to loose but plenty to gain.
If the US wants to accuse China to claiming 12nm around its islands, China will play along. As that only works to China's advantage by effectively creating new facts on the ground. In that respects, all these FON ops actually help China by giving it the perfect pretext to establish a consistent record of challenging foreign 'intrusions' within 12nm of the islands without having to explicitly break with intentional laws and rules by challenging civilian vessels or foreign military assets conduction innocent passage.
Really think about it, without all these FON ops by foreign military forces, how could China have established and demonstrated that it 'owns' 12nm around its islands? Same thing with militarisation of the islands.
Without all the media circus and foaming rants from the US government before the fact, if one of their warships came within 12nm of one or more of those new islands as it was making a straight line innocent passage course to a known destination (the US could have been extra clever by doing that during a friendly port call visit), that would have truly tested China's intents with those islands.
That is how FON missions should have been planned and executed. You first get a baseline of what your target actually is doing, and then extrapolate their intentions from those real actions.
Instead the US formed its opinions of Chinese intentions with zero evidence (all the while studiously ignoring what the Chinese government has been saying about its intnetions), and then devised its military strategy and tactics based on those unfounded and baseless ideas. That's call getting things ass backwards in my book.
Now China is going to challenge foreign FON ops from 12nm out like clockwork, and make those islands into massive military bases and say it is only doing that because of US military FON missions which started first. And there isn't much the US can do about any of that since it has already played all its cards prematurely.
The net result is that the US has provided the perfect diplomatic cover for China to militarise those islands, and actually look reasonable doing it. At the same time, regular foreign military FON ops have also on the flip side become a way for China to create new facts on the ground by establishing a clear pattern of challenging foreign military presence within 12nm of its islands.
As the Americans ironically stated in justifying FON, international laws about maritime matters is more about facts on the ground rather than written laws and treaties.
Now it's a question of who can persist longer.
China has already built its islands. Sitting on them costs very little compared to the costs foreign militaries pay to mount FON missions.
As far as China is concerned, the US and others can waste all the money it wants sending bombers and warships on glorified jaunts while China just trolls them on the radio.
How long before the costs of mounting these FON ops adds up to enough to buy a new fighter or warship?