People here are in a bubble who think tech is only FAANG and node_modules with JavaScript frameworks.
The US has orders of magnitude more satellites thanks to SpaceX, including American direct-to-satellite networking.
Medical imaging is another example of where the US wins on scale alone. MRI machines are extremely common here, almost twice as many per capita as the OECD average.
Europe has lots of talent but a really horrible regulatory environment. That's why it's not a "powerhouse" and is instead almost always stuck in second place.
Rolls-Royce is 100% British, CFM International is 50% French and together they represent around 30% of the market.
Which says nothing about whether they ought to be, or whether our healthcare is better for having them. Needless imaging is a massive cost drain in the industry.
Let's please stop using healthcare examples when we don't understand healthcare.