Are you not missing that Russia could make 100,000 of their own?This could be true, but I'm not so sure of it. Consider: it costs only $6,000 to make the cheapest switchblade drone. If the manufacture of these is ramped up, it means that 10,000 of these drones could be delivered for $60 million, or 100,000 drones for $600 million. The Russians have no defence against these.
How long would the Russian continue to hold their positions with 100 switchblade drone attacks raining down on them every single day for weeks or even months on end?
No idea what that would actually mean for warfare, I suppose no one can be sure until it happens, but it's generally the way it works, if one side develops an effective new weapon, the other copies it.