They can, to some extent, but drone stockpiles and factories can be targeted and destroyed by conventional means. It is difficult to destroy them ALL, but it is certainly a problem that can be addressed to a degree without taking over the country.
> They can, to some extent, but drone stockpiles and factories can be targeted and destroyed by conventional means.
Every time the US shoots down a Shahed with a Patriot, the US is further from winning. The problem is that the USA is running out of US$4 million patriot missiles long before Iran runs out of $40K shaheed drones. And Iran can restock sooner.