There is no alternative to the US. American tech companies are the OS of the modern world.
China is fast following US companies in almost every field. The US is at the frontier, China is nearly always in the rear view mirror. China is good at scaling, but the US is the clear leader in breakthrough innovation and setting the trend line for future technological and scientific growth.
That was the case with EVs/FSD, biotech/Covid vaccines, AI/ChatGPT breakthrough, now reusable rockets. All this in the last 5-10 years. An the US reaps the economic rewards. It’s why the US has seen a growth and productivity boom since Covid and why the US is running at 4-5% growth rates, and record high stock and tech company market caps.
US companies are leading the way, while China is the afterthought hoping to catch up.