ASBM is developed after 1996 taiwan strait incidence. It supposedly to deter Carrier from getting too near. But looks like it didn't have that effect in current SCS situtation. potentially there could be 2 or 3 US carrier strike group gather there. So,itspurpose is defeated.
China needs to go back beef up its nuke deterrence. Its Minimal posture fails.
Solarz has covered the main points, but I'll add that:
1. There are only 2-4 brigades of ASBMs, which is not enough for all the carriers.
2. The USA can rely on the fact that it is also not in China's interest to start a war, as it would severely set back China's economic development
3. And I did mention 30 DF-41 missiles with 300 warheads, which should be enough for a secure second strike capability for 100 cities.