"We'll see how well that goes"
I believe you're using the Internet. That's an American invention. (Yes, a Brit in Switzerland put the web layer on top of it, but the Internet was developed by the US DOD.)
Modern electronics rely on the transistor. Cell phones would look pretty funny if they had to use vacuum tubes
How many Brits have walked on the moon?
And then there's the inflatable tank, which helped the US save Europe's ass again in WWII, because Europeans can't even write a treaty that doesn't guarantee another war. (Hint: not enough arable land in Germany to support population, Treaty of Versailles banned most factories over the US' objections.)
Apple computers. IBM computers. UNIX. C. Windows. Total Quality Management. GPS (another DOD project.) FAX (in 1925!) Solar cells. Digital networks.
Cardiac pacemakers. Glucose meters.
And if American companies are stopped from bringing in foreign workers under false pretenses to drop wages, you'll see a lot more of this.