The "big deck" assault ship idea is all right, but it seems you forget
about one of the most important things: DEPLOYMENT CYCLES...

Having only one such a ship would not make much sense, because that
would be usauble through only 6-to-9-month period within every 27
months (plus extensive overhauls required for such a weary vessel).

Sure, that would be a great tool for showing off (I can see the
headlines: "The situation in Bla-Bla Gulf is so tense, that the
President decided to send there a special assault ship, USS Kitty
Hawk, with over 50 Marine strike aircraft on board..." But it could
mean much more deterrence if the carrier was stationed at Guam, or
Japan...

P.S. To correct the squadron info: this fiscal year Marine Corps is
deactivating not one, but two deployable F/A-18 units, namely
VMFA(AW)-332 and VMFA-212.