You are assuming manufacturing trade as only income. Services export and IP export are other where USA leads. When Apple sells iPhone in India and China, it gets to bring back the profits to the USA. Same goes for EU paying for Netflix and Disney movies and Google services. Same for McDonalds, Starbucks, Coca Cola and Pepsi. Collectively, US companies make 100s of billions of profits from outside USA. Another perk is being the reserve currency, you print bonds for free, get clothes/toys for that and rest of the world is just holding onto that IOU. Again, trillions of dollars.