> Given that the US is a lot more racially heterogenous than the majority of the world
"The US". You didn't say "Framingham". You know, it's really a PITA to have discussions with someone who can't just say "I made a mistake, I edited my comment" or something like that and instead try anything else.
Sure, I made a mistake. I was using prior knowledge of Framingham/the region that I didn't spell out in my first comment. I should have done that, but I was lazy and it didn't occur to me. Happy? I spelled it out in the next comment to explain the basis of the previous one, which I felt was sufficient. Evidently it wasn't; because you want explicit admission of fault. Here you go.