I think the concept of area denial has been primarily addressed here as a tactical issue. It has a strategic role.
Having a horrendous number of surface to surface missiles along the shore means the carrier task force won't want to hang around that close to shore - particularly if tensions run high.
Sure, aircraft can cover this range and engage surface targets if needed - and can attack aggressively if their carrier is safely out of range. But if the first thing the US does is pull its carrier back, it reaffirms the Chinese claim to possessing that ocean. The longer range missiles they have, the greater they can claim sovereignty over their surrounding ocean.
And if the US chooses to keep its carriers out of effective weapons range at all times then China will have already come out a winner of sorts as it would appear that the US is reluctant to challenge them.
Ultimately, this isn't about war with the USA which would be strategically devastating (the cost to their economy alone would be prohibitive). It is about showing an ability to control their area of influence and to strengthen their claims on natural resources. If the choices for the US are:
1. take a stand militarily against China over its seizure of natural resources in the South China Sea and support Philippines/Indonesia/Vietnam in their claims to those resources - with resulting damage to oil rigs and disruption in the flow of oil. or
2. Try to find a diplomatic solution that leaves China control over those resources while forcing some short-term compensation to their neighbors - maintaining the flow of oil
I'm thinking the USA would ultimately favor option #2, using the negotiated compensation package as a way for everyone to give China what they want and save face. The US economy doesn't depend on who the oil is bought from, but only that the oil is supplied and at what price.
Having a horrendous number of surface to surface missiles along the shore means the carrier task force won't want to hang around that close to shore - particularly if tensions run high.
Sure, aircraft can cover this range and engage surface targets if needed - and can attack aggressively if their carrier is safely out of range. But if the first thing the US does is pull its carrier back, it reaffirms the Chinese claim to possessing that ocean. The longer range missiles they have, the greater they can claim sovereignty over their surrounding ocean.
And if the US chooses to keep its carriers out of effective weapons range at all times then China will have already come out a winner of sorts as it would appear that the US is reluctant to challenge them.
Ultimately, this isn't about war with the USA which would be strategically devastating (the cost to their economy alone would be prohibitive). It is about showing an ability to control their area of influence and to strengthen their claims on natural resources. If the choices for the US are:
1. take a stand militarily against China over its seizure of natural resources in the South China Sea and support Philippines/Indonesia/Vietnam in their claims to those resources - with resulting damage to oil rigs and disruption in the flow of oil. or
2. Try to find a diplomatic solution that leaves China control over those resources while forcing some short-term compensation to their neighbors - maintaining the flow of oil
I'm thinking the USA would ultimately favor option #2, using the negotiated compensation package as a way for everyone to give China what they want and save face. The US economy doesn't depend on who the oil is bought from, but only that the oil is supplied and at what price.