Aircraft carriers are great if you need to project force into a territory occupied by groups over which you have superiority. Against an enemy with state of the art anti-ship missiles deployed along the coast, modern radar and satellite capabilities, all bets are foo.
Some people think in such a conflict, aircraft carriers are overpriced targets that can be disabled or even sunk in the first hours of a conflict for the cost of a few missiles and a few light ships to launch them. IIRC a red team managed to disable most of the US Navy in that fashion in an exercise a few years ago.
There are countermeasures deployed, several layers of them, and missiles have counter-counter measures. Only very few are actually deployed and really tested on the field.
We know in good conditions, they work, on some missiles. In a real conflict, how many will they stop? 100%? 99%? 50%? 20%? How well can missile decoys fool countermeasures? What hidden tricks have different sides kept in their sleeves in preparation?
We will learn it on a very fateful day that could either see the record on tonnage sunk on a single day or a very fast conflict deescalation from the attacking side (assuming US would be the defending one, credible in the case of China)