You seem to have an awful lot of imagination, failing to account that the Chinese not only have numbers, but now, even precision guided munitions that can be fired at long range, in fact, while the planes are still over the mainland coast. The PLAAF is now heavily equipped with EW on many of their planes, and one particular development even has a laser attached to the ECM pod. The PLAAF also has SEAD/DEAD aircraft, with ARM missiles that will home in against enemy radar. They are supported by their dedicated AWACS, C3I, and EW aircraft, along with specially designed aircraft that can do long range search of sea targets, then guide ship launched long range AshMs to them well beyond the surface radar horizon.
With the advent of active guided fire and forget BVRAAM on the PLAAF side, the PLAAF can in fact, deal with the ROCAF on a one to one basis (no need for numerical superiority) and without SSMs targeting the bases, and still even win. Utelore described it right, both sides would be throwing so much missiles, they would be knocking themselves off the sky, not to mention plenty of fratricide and mutual destruction (both planes killing each other).
And there are drones and UCAVs to deal with too, like remote controlled J-6s laden with bombs, being used as bomb carriers or kamekaze.
Another is that the PLA has significant long range SAM assets that they can deploy right off the coast and these missiles can cover all the way to East Coast of Taiwan. Since the PLAN now has AAW vessels with long range radar and rapid fire VLS, that again are major threats that can nail ROCAF aircraft right off as they launch.
Go to Google Earth and check where the ROCAF bases lie. A number of the major ones are close to the west coast of the island, making them vulnerable to being disrupted and even taken over by amphibious landings, or hit by MLRS units on the mainland coast, straits islands or even from ships (the PLAN has converted old destroyers to fire MLRS).
The problem of the ROCAF is that it is meant to fight a PLA circa 2000, but failed to anticipate many of the PLAAF advances since then, along with a rapid transformation to a highly much more technological force by 2010.