Aha, now you've waded into the waters of leftist infighting. Welcome, comrade! (The joke here is that there is a never ending debate between those who believe in a centralized "communist" economy vs those who believe in a decentralized "anarchist" economy)
Well, when infrastructure implodes, local will be the only choice. I would guess that the majority of people have no idea as to how much we rely on freight transportation and electricity. Some people think "I have enough food in my freezer to last for months!" Ok, when the power goes out, what then?