I don't think anyone is arguing that two carriers aren't a useful asset. Or that carrier air can operate where land-based can't.
However, we have to recognize that there are reasons why the land-based branch might be looking askance at the wonders of CV.
The carrier plan has, for the time being, been severely cut back in terms of the number of sustained, embarked airplanes.
However, it continues to dominate the TacAir budget, to the point where the Tornado capability is being "replaced" by eked-out Typhoon AD squadrons and 48 F-35s which will mostly support naval operations. If MSOCS is to be believed, too, FJ people are going to be told that they can go to sea or take a walk.
So you do start to ask "Carriers are cool, but what else could we have bought for the money?"