If AOC can build mass transit tracks across the Pacific shell figure this economic thingy out.
And then there is medicine for the health of the Leaders. The health of the population will not be a concern of the leadership. There will be clinics but they will have less and less medicine and lower and lower skill levels. The socialists now assume they will be able to monopolize the modern system of medicine and health. They can, of course, but the quality and quantity must decline rapidly as the ppowerhouse of medical innovation and production can no longer afford to produce or even maintain it and with America a socialist Utopia there will be nowhere left in the world for the Rulers to go to get their diseases cured.
When America shuts down so does the rest of the world. Europe cannot exist as modern states at its modern level without America without dismantling totally its own system of governance in favor of government like America had 150 years ago.