Regarding China, we just don't know. That said, taking billions of dollars from one carrier and using it for hyper-sonic interception research so the other 10 can survive unscathed isn't terrible math.

The important thing to realize is that in a war scenario sortie rates are important. Drones are great because they can take off from North Dakota, fly 20 hours half way around the world, drop some stuff then spend 20 hours flying back. Compare that to a carrier sortie where you take off, fly for two hours, drop something, and fly two hours back. That frees 36 hours on that airframe to get reloaded and go drop more stuff.