I don't think it makes sense to consider the arbitrary geographic landmasses as meaningful cultural units. Do you consider Canada, Mexico, and the US as meaning

I don't think it makes sense to consider the arbitrary geographic landmasses as meaningful cultural units. Do you consider Canada, Mexico, and the US as meaningfully the same? France, Germany, Greece, Italy, Serbia, and Sweden? Argentina, Brazil, Ecuador, and Venezuela? Egypt, Morocco, Nigeria, South Africa, and Tanzania? Not to mention Asia and Australia/Oceania. (And then again, how are you going to divide your continents? Wikipedia provides 5 different recommendations.) Even if you're only considering Europe and Africa, are you including Russia part of Europe (as opposed to Asia)? How about Turkey? I don't consider it gerrymandering to consider sovereign nation states differently. We're talking orders of magnitude difference in economies and all varieties of government types.