Global demand for dollars as the reserve currency forces the U.S. to run persistent trade deficits to supply them. This strengthens the dollar and boosts import power but hollows out the domestic industrial base. A future decline in dollar demand would create a painful economic transition.

While U.S. fiscal deficits remain high, new tariffs are reducing the trade deficit. This means fewer U.S. dollars are flowing abroad to foreign entities who would typically recycle them into buying U.S. assets like treasuries. This dynamic creates a dollar liquidity crunch, strengthening the dollar.

The idea that US energy independence provides insulation from a global crisis is a fallacy. Markets are global. The only way to decouple US prices would be to enact export controls, which would ironically disrupt domestic markets, lead to production shut-ins, and ultimately fail to prevent economic damage from a global price shock.

A US oil export ban seems logical during a crisis, but it's counterproductive. American refineries are primarily configured for heavier crude oil, while the US shale revolution produces lighter crude that must be exported. Not all oil is fungible, making global trade essential for domestic refining.

An oil shock centered on the Strait of Hormuz will cripple energy-dependent economies in Europe and Asia far more than the U.S. This economic divergence will lead to a sharp appreciation of the US Dollar against currencies like the Euro, creating a powerful flight-to-safety rally in the dollar itself.

Using the dollar system to sanction nations like Russia backfires spectacularly. It destroys the global reputation and trust necessary for a reserve currency, encouraging other countries to find alternatives.

Each time the U.S. uses financial sanctions, it demonstrates the risks of relying on the dollar system. This incentivizes adversaries like Russia and China to accelerate the development of parallel financial infrastructure, weakening the dollar's long-term network effect and dominance.

The US primarily produces light crude oil, but its refineries are configured for heavier crude. The country exports its light crude and imports heavy crude to match its refining capacity. An export ban would create a massive mismatch and strand domestic production.

While banning US oil exports would initially crash domestic prices, it would quickly cause an overflow of products like diesel in the Gulf Coast. Refineries would then be forced to cut production, ultimately creating shortages of other fuels like gasoline on the East Coast and disrupting the entire system.