this drones you speak of would be pretty small and each one could be taken down with much smaller guns from air or sea. no need to use a missle, they are design

this drones you speak of would be pretty small and each one could be taken down with much smaller guns from air or sea. no need to use a missle, they are designed to take out heavily armored air/sea craft. thus i think it would take a lot more then 10k cheap drones to take out a carrier group.