PLA Navy and Naval Air Force

Let's start with the fact, that the Chinese followed the exact path of the Soviets.
They are building in numbers, and improving projects in the process.

Please go check the numbers. Post WW2 they started with 26 Zulu class followed by 220 Whisky class for the diesel subs.

For the SSN they started with 14 November classe followed by 50 or so Victor class. They had tens of different classes. Even today they experiment a lot with the few they have.

And they used to constantly sail all over the world. Not just around their coast like the Chinese.

Considering the good big steps taken in long range missiles and drones of all sort, those ships are just easy targets.

If they don't come with new AD and anti swarm drones systems, they will suffer the same fate as russian black sea ships.

Considering that the chinese have the advantage of fighting a potential war near their shore, as they won't be dumb to fight further away, they would have the advantage of ground launchers and air force planes presence.

If you see how iranian missiles go easily in Israel, same will happen with US bases. Most of those US island would need not even 50 missile to be badly damaged, 100 to get destroyed, and the US don't even have anti hypersonic weapons.

China already has enough power to completely deny the western pacific to the US navy and anihlate japanese navy.

Subs are good but they don't win wars... the diesel sub they have are enough to keep any US sub away from the coast, and even if not they would still have the advantage of the air force that would hunt them with planes and speed boats.

China can't win a far away war for sure but they can easily deny the US presence there if they wanted to.