Those movies were lying to make a point; they were trying to terrify people and succeeded, not trying to make them survive if it actually happened. It's rare that you would see a thoughtful film about surviving and rebuilding the world after it, because it is beyond the scope of film and doesn't have the hook that fear brings.
Don't take things too seriously. Remember all the movies about the internet in the 1990s.
Don't take things too seriously. Remember all the movies about the internet in the 1990s.