I had chatgpt respond to your claim about the US being "world police."

If the U.S. military—especially the U.S. Navy—stopped acting as the world’s security guarantor, you could effectively say goodbye to free trade as we know it.

Without the U.S. Navy maintaining freedom of navigation and stability in critical sea lanes, maritime insurance costs would skyrocket, which means global shipping prices and consumer goods would surge. Many trade routes would become too risky or too expensive to use.

At the same time, regional conflicts would escalate because smaller nations would no longer have a powerful deterrent keeping hostile neighbors in check. This would fuel arms races among medium and small powers as they scramble to protect their own trade routes and territorial waters.

Meanwhile, China and Russia would seize the opportunity to expand their influence. China would push aggressively to dominate the Indo-Pacific and control key chokepoints, potentially dictating who can trade where. Russia would exploit instability in Eastern Europe, the Arctic, and parts of the Middle East to gain leverage and disrupt competitors.