But the more important question is; Why would you care about Bitcoin when literally everything that is electronic has been taken out? Bitcoin should be least of your worries when the infrastructure of your country is wiped clean
This is very true. The situation in that hemisphere would be dire, and reverting, at least in the short term, to a very primitive level.
However, remember that bitcoin is a global network, and barring complete annihilation of all electronics worldwide, and electronics manufacturing facilities, the internet would return again to the areas where it was wiped.
A more interesting question for the remaining part of the network is just how badly the hash rate was affected, and how long it would take of the 10 minute average block time take to be re-established. It might be wise for bitcoin to adopt one of the more sophisticated diffalgos which were developed for alt coins suffering from wild hash-rate swings for this reason: the unexpected disappearance of substantial hash rate. Unlikely, yes, but impossible, no.