It's been noted in a couple other threads I've read how humans are over-represented in the Federation, which is true, but Americans also seem to be over-represented. Somebody correct me if I'm missing something but I did some cursory research on human nationalities in Star Trek and I came up with this breakdown:
11-13 Americans:
Kirk, McCoy, Sulu, Riker, Pulaski, Sisko, Janeway, Kim, Paris, Archer, Tucker, and then maybe Wesley Crusher and Chakotay who are both ambiguous.
6-7 Europeans:
Chekov, Scott, Picard, Crusher, O'Brien, Reed and maybe Wesley.
2 Africans:
Uhura, LaForge
2 non-Earth humans:
Yar, Mayweather
1 Asian:
Sato
0-1 Latin Americans:
Maybe Chakotay
0 from Australasia/Pacific
Now IRL obviously it's an American show marketed to Americans so that somewhat explains that, but setting that aside, it seems like there are way too many Americans as a proportion of humans.
In universe, some of this could be explained by the US seemingly taking very little damage from WWIII and being spared from the post-atomic horror. But are we really to believe half of humanity's population lives in the US in the future? That would almost certainly necessitate a much larger death toll than the 600,000,000 killed in WWIII. Other (in-universe) explanations?