[Detrytus]

> You can make them so cheap defense becomes too costly.

That's because the US chose to shoot them down with Patriot missles, like morons. Ukrainians have developed cheap interceptor drones for this very purpose.

There are also radar-guided anti-aircraft guns like this: https://en.wikipedia.org/wiki/Flakpanzer_Gepard

[dyauspitr]

Just for context it’s about $1 million per patriot vs just $2000 for the Ukrainian Shahed interceptors.