just depends on volume and how close the stuff gets before it's detected. They'll lose the war where they send up hundred million dollar fighter jets to shoot down 600 autonomous weapons that cost 10k a piece and i have my doubts they could even eliminate that volume timely enough to prevent some of them from getting through. What's a carrier group capable of putting in the air 25-50 planes? Each plane capable of carrying 8-10 aa missiles? Time wont be on the carrier groups side and this is just a formula that can be calculated. If the chinese need to send up 2k devices and can do it for less than the cost of a carrier they would.
I thought more about these brrrrrrrt devices, just forgot their name. They can take out drones and subsonic missiles, but are useless against a kinetic force coming in at hypersonic speed.
Edit: They are called Phalanx close-in weapons system (CIWS). https://youtu.be/YQHr9TC7lXM
Phalanx they have 4 on a carrier and some on support ships but they can only engage so many targets at once. In a coordinated attack with decoys all coming into the target at once they can be overwhelmed numerically. Figure you use a ton of supersonic smart missiles augmented with hypersonic missiles. you can potentially shoot more ordinance from land than the carrier group would have enough ordinance to defend with.
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