“The EMP threat is grossly overblown, at best it’s an additional damage circle for low altitude explosions, the super bomb 300 miles up is impractical and will functionally render said bomb useless.”
No blast damage from a 300 mile altitude detonation.....
EMP is real, but how intense and how damaging is not known....
We’ve got some pretty good ability to estimate. We know how electronic waves fade over distance, we know how the atmosphere chews them up, and we know about the EMP strength of various sized bombs. We know enough to have never dedicated a serious chunk of our arsenal to be used that way, given that there was a time when we were seriously looking for ways to kill the people and leave the buildings if EMP was that cool we’d have put it in our plans.