I don't know that the argument of F-22s is that relevant. On the assumption that F-22s are at Kadena (the closest US Fighter base in the area) at the time of the invasion, which is a big assumption as they aren't based there normally, do you think that the US can generate enough sorties (given the limited number to be secured, scattered around the world, with training orgs and in maintaince etc) to stop the swarms of Chinese fighters over taiwain. These limited numbers would need air refueling, thus creating a weak link the Chinese could attack, the long flight time to taiwan would just tie up the limited numbers and fatigue pilots when the arrived in the area WITHOUT AWACS support. The 700 missiles china has would garentee that there wont be any runways to base them in taiwan. realistically the only aircraft that the US can call on to secure air supremacy in a surprise attack on taiwain, is at best 1 carrier battle group, as most would not be able to sortie from the states in the 7 days that the Taiwanese think they can last. That 1 CVBG could at best call on just 20 super hornets and a similar number of older hornets. The super hornet is a good plane but its NOT an outstanding one, it certainly isnt the silver bullet the US would need. The simple fact is F22 of not, the US wont have air supremacy over taiwan in a surprise Chinese attack.