Roads. Cars. Fuels.

No other nation on the planet lives like we do in the USA. Just imagine gas at $8/gallon. Imagine ALL of the road maintenance, the machines required, the materials required.

Then understand the impact transport has on food distribution in the USA.

Then realize that 46M people in the USA, so about 20%, live with water insecurity. American shoppers spend almost $50Bn on bottled water annually.

Yeah, it's going to be incredibly ugly. Right now, climate change is the biggest threat to the American Southwest. But if the world shut America out of primary economic dominance, cities in Arizona would be abandoned within a few years as no one would be able to secure sufficient water to live there. The climate refugee crisis is going to crush America even if it remains the global hegemon, but if it doesn't and the labor of the global south ends the "free ride", it's going to be horrible for the average American.

Think about those people in Tuscon. Where are they going to go and how are they going to get there? Vehicles. Roads. Gas.

And that doesn't even get into cell phones, computers, industrial equipment, medical equipment, plastics, clothing, SHOES.

It's not that Americans aren't struggling. It's that we're living in an incredibly inefficient setup. And that wording is HILARIOUSLY understating it.