That is a problem with western carriers. They typically dedicate as little deckspace on ship defense as possible.
Not a problem..but an advantage. More aircraft are aboard.
More shipboard weapon systems? Doesn't matter. A US Navy Carrier Strike Group job is to protect the CVN. And that they do.
STRIKE GROUP
"The
Carrier Strike Group (CSG), composed of roughly 7,500 personnel, an
, at least one
, a
of two to six destroyers, a
of 65 to 70
& one SSN. A carrier strike group is the largest operational unit of the
and comprises a principal element of U.S. power projection capability.
The Carrier Strike Group is a flexible naval force that can operate in confined waters or in the open ocean, during day and night, in all weather conditions. The principal role of the carrier and her air wing within the Carrier Strike Group is to provide the primary offensive firepower, while the other ships provide defense and support. These roles are not exclusive, however. Other ships in the strike group sometimes undertake offensive operations (launching cruise missiles, for instance) and the carrier's air wing contributes to the strike group's defense (through combat air patrols and airborne anti-submarine efforts). Thus, from a command and control perspective, Carrier Strike Groups are combat organized by mission rather than by platform."