Their argument boils down to "The Chinese could put enough planes in the air to overwhelm the USAF." But there's a lot more to real-world fighting than a simple numbers game.
They mostly gloss over the huge disparity in pilot skill, pre-conflict intelligence (our side being ready for what they'll throw at us), early-conflict counter-measures (hard to take off from bombed-out runways, or find the enemy with no operational radar...) and the massive logistical processes needed to put and keep a large number of aircraft in the air. (We can refuel our birds in the air and keep them there, while the Chinese would have to land a lot. etc.)
The devil is always in the details, and the USAF has all the details on its side.
Six USAF F-22A Raptors should be joined by eight F-15C Eagles and sixteen ROCAF F-16A Block 20 / F-16C Block 52+ Fighting Falcons along with an AWACS and an ABL 747, both of them kept away at a safe distance of 200 kilometers.
How’s that for technology against 72 PLAAF Su-27SK, J-11B and Su-30MKK Flanker fighters flying in three separate 24 ship formations?
PLAAF Flankers make kung fu rags for ROCAF F-16s. Nationalist Chinese pilots are flying kung fu warriors.