No it wouldn’t. The EMP threat is grossly overblown. The range isn’t actually very good, to achieve the altitude necessary to blanket the country is actually very tough, plus of course you just put a bunch of the country out of range, and a lot of electronics just won’t be effected for various reasons. The paranoid love ringing this bell every few months, and they’re wrong every single time.
“The EMP threat is grossly overblown”
The threat is real. We just don’t have any idea of the actual impact. It could be minor to catastrophic. We don’t know