I'm just trying to define my definition of a drone, it need not be everyone's.
A problem with massive drone attacks on a carrier is range. The carrier could be 700 miles offshore and be effective, so you'd need a large ship to approach to within range of the drones to intercept it, which is possible in peace time. You could also launch from cargo transport aircraft like a C-130, but only in peace time. Submarines already carry "drones", we call them torpedoes usually. They can be wire guided up to terminal range.
"That torpedo did not self destruct, and I was never here."
It's an interesting thought exercise, I imagine navies wargame such things, maybe using "AI".