The US is 61% non-Hispanic white, which is not a single ethnicity but a grouping that includes everything from Irish to North Africans. And of course there is a long history of race-based conflict between those groups (e.g. see the local politics in Chicago or NYC).

> The US is 61% non-Hispanic white, which is not a single ethnicity

The idea that "non-Hispanic white american" is not a distinct ethnic identity (usually just "White American" or even "American", with Hispanics viewed as non-White , actual ancestry aside, outside of bureaucratic systems and foreign in ethnicity) despite recognition of distinct national origin, is somewhat dubious. Its true that some of those national origins historically were viewed more as distinct ethnicities and even treated as just as non-"White American" as Blacks (or, perhaps more germane to the point, White Hispanics) are now, but while the national identities persist, that treatment has largely changed. I mean, sure there is a time when by virtue of his mere name Bill O'Reilly would be a reviled enemy of the nativist defenders of White American identity, rather than in a position to be an icon of nativism. But that time is long past.

So white people who speak Spanish shouldn't count? It's 73% white, not that different practically speaking.

I get that white in the US means a lot of different things, but it's not like Spain or Germany are a homogenous glob.

It's not fair to say 'Ethnically European' in the same sentence as 'Ethnically German or Norwegian'.

France and UK are as different as France-USA, UK-USA. Europe is extremely diverse across borders.

So, the 75% of America that is 'Ethnically European' is already very varied.

Also - a good chunk of the 'non-Norwegians' in Norway are Swedes and Danes, which are pretty close.

>>> So, the 75% of America that is 'Ethnically European' is already very varied

Maybe genetically (although even that is debatable). But after a few generations you kind of iron out the differences between, say, a German - American and a Polish - American.

The differences between Germans and Polish are much larger. They speak German and Polish for instance vs just English.

I agree with your points, but I just don't think America is nearly as culturally homogenous as basically any European country.

I didn't say that (although I disagree with that too). But I'm addressing the comparison between European Americans and actual Europeans.

Where did you get the numbers for France? I though that it not possible to do any ethnic census there? Perhaps it could have been done by asking for countries of birth for the parents/grandparents.

Also when you are saying colonies, is it the former colonies (North Africa, Sub-Saharan Africa, Ex-Indochina) or the current overseas departments (in the Carribean, Guiana in South America and in the Indian Ocean)?