I read an article once on The Warzone regarding the AIM-174B. To my great satisfaction, even the Warzone authors acknowledged that with EXISTING air to air missiles in the US inventory, the US will be "hard pressed" to get within range to destroy Chinese fighters. Because the PL15 and PL17 out-range the AIM120D. This means that with CURRENT US missile inventory, China can easily achieve and maintain air superiority in the areas around Taiwan. However, the bad news is that the AIM-174B and AIM-260 are now slowly coming online. These missiles likely out-range the PL15 and PL17 and give the US a very long range option to target Chinese aerial assets.
What are China's options to deal with this real and substantial threat?