Yes, the US academic and scientific establishment absolutely dominated the world in research during the latter half of the 20th century and the early decades of the current one. For that we can thank Vannevar Bush and other visionaries who, after World War II, realized that the funding basic research, largely at universities, was essential to being an economic and military superpower in the modern era. No one is disputing that the United States dominated Nobel Prizes. But that is fading into the past. Nobel Prizes are often awarded for work done 5, 10, or even 20 years earlier. What people are concerned about is the future of academic research. Federal funding for this is being gutted on one end, and on the other universities are turning to private equity to run what is effectively a pro sports franchise. So yes, the US has done awesome in Nobel Prizes during the last century. But nothing lasts, friend. And the trends right now are pretty shitty.