This doesn’t address “Quickly overwhelmed”.

Yes, a wall of $150,000 bushmasters with some servos can take hurl enough lead in the air to protect a city from a single gulf-war era $100,000 lawnmower engine on two meter wings bumbling in a straight line at jogging pace.

We’re currently in the “a shipping container on a semi can could launch dozens of $2000 racing quads with molotov cocktails zip-tied to the bottom with enough agility to thread a needle faster than a turret can swing its own mass”

And the writing is on the wall for some near-future “any nation state could drop sci-fi cluster bombs that shed ten-thousand 250gram racing quads that can overwhelm even the most advanced point defence just by numbers and it’ll be cheaper than a conventional 2000lb bomb”