[sudosysgen]

That can just never work. Several drones swarming around you do will do bugger all against enough shrapnel, or against a shaped charge, or just a sufficiently heavy drone going fast enough. Or the drone could carry a chemical agent and kill you.

The economics of defence are such that kamikaze anti-drone drones won't work. Either they'll miss the vast majority of the time, or they will be hideously more expensive than the drone they're defending against.

[Animats]

"The bomber will always get through". That remark was made about the big bombing campaigns of WWII, and the planned nuclear attacks of the 1950s and 1960s. Drone attacks are the same concept in miniature.