“Because 300 miles is a lot further up than people think, and in reality nukes are going to be low altitude and most everybody in the EMP zone will also be in the blast zone and the state of their electronics won’t really matter.”
An EMP can be manifested from 30km on up. At very high altitudes above 400km its effect weakens.
What you fail to realize is that an EMP is the desired strategy many would-be attackers.
Small warheads and launch systems that can reach EMP altitudes are achievable by countries like N Korea.
It’s not a made up thing.
An EMP can be manifested from a ground burst, but the lower it is the smaller its range. See you just explained exactly why EMP paranoia is stupid, not only is nobody getting a nuke that high up, it won’t be effective.
What you fail to realize is that EMP is actually NOT a desired strategy by any of our enemies that can use it. Anybody who has nukes wants to do the damage with the ACTUAL NUKE, not some EMP field that won’t be nearly as big or exciting as the paranoids like to insist.
Small warheads at high altitudes will have their EMP effect weakened thus making the entire attack pointless, NK will go low altitude and actually damage us with primary and secondary nuclear blast effects.
It is 100% a made up thing. Pure paranoid gibberish that completely fails on bothering to examine it.