So, how did the US become the country with the most white people? Well, it's largely due to European migration and colonization, which started centuries ago. It's pretty wild to think about how all these different cultures merged to create the diverse (but still pretty pale) population we see today.
But, the US isn't the only country with a significant white population. Other countries, like Russia, Canada, and Australia, also have large numbers of white folks. And, fun fact: did you know that Sweden has one of the highest percentages of white people in the world, with over 90% of the population identifying as white?