A drone swarm can take out a swarm of Cessnas.

Realistically a Cessna single prop is roughly $100k (average between good condition used and some new ones). A Ukrainian interceptor drone is about $2k + cost of munition. And the Cessna requires an airfield, so it is geo-fenced, while an interceptor drone can take off from flat land or the back of a truck.

People need to wake up and realize the economics of war just changed by several orders of magnitude.