> It's a return to battleship economics.

The real economics of battleships (and their precursor ships of the line) were:

Given expensive armaments (cannon), it is cheaper to concentrate these on a mobile platform that can geographically reposition itself than build / deploy / supply equivalent power everywhere, and the former allows for local overmatch.

Sufficiently cheap and powerful unmanned guided munitions (drones, cheap cruise/ballistic missiles, UAV/USV/UUVs) are a fundamentally different balance of power, especially with enough range.

What does make sense is a return to cheaper escort carriers, where the carrier should be as cheap as possible (preferably unmanned) as the platforms it hosts are no longer exquisite.