The Chinese are masters of 'bluff' -- posture. Chinese history and society have taught them to be thus. It is wasteful and stupid to FIGHT - but unmanly to appear UNWILLING TO FIGHT.
So it is with PLAN arm. Subs and carriers.
But in the west Britain (+ ComCs), USA, France and (failed) Germany have culture and commitment to BLUE WATER NAVAL OPS. Japan -- student of the RN -- briefly out-mastered the master. IJN were masters of projecting force from the sea - until they met Admiral King.
So China is pushing out - but their defense isn't naval - it's the Chinese Deny/Access /Destroy system - this is CLEVER - very Chinese, But it won 't defend against the USN and allies mastering "shoot and scoot" scenarios. Each of these newly dredged islets will need to be 'defended'. Good luck. Landing party from sub takes out the garrison, carts off the 'paper work' and is gone. Combined Ops #1.
Carriers simply will not operate within range. They will treat the theater much as in Korea and Vietnam, but now stealth and drones.
Shoot and scoort subs launching swarms of drones can generate diversions. We are seeing this being perfected right now.
Question: Does PLAN have the manpower, fleet and leadership to take the defense
out to blue water -- meet JAPAN, USA, GB, ANZAC navies?
You guess ...