I don't mean anything by it, this data is based on self-identification, these people seemed to think 'American' is an apt description of their ancestry, which it obviously isn't because they are mainly Caucasian, but it's upt to them what they report as.
the point is that they are European and can't be truly American by the root of their historic ancestry, but they have been so homogenized that they don't know or care where their family came from and for all they know their people have always lived there. The same applies to Africans, but they are told what continent they are from instead.
If your family lived somewhere for 350 years, would you not count it as your ancestry? European originally but not anymore. At that rate everyone's ancestry would be Africa.
As long as BIPOC in Europe get asked questions like “but where are you REALLY from?” and BIPOC in the US do not feel they can report “American” the same way WASPs do, I will have zero sympathy for this redneck stance of white Americans pretending they’ve lived in the US since the beginning of time and aren’t descendants of settlers/colonialists/people who stole indigenous peoples’ land and likely had slaves at some point. With the ongoing large scale deportations, white Americans should remember that they too were immigrants once!
The small range of "Americans" implies that hyphenation has become near ubiquitous amongst each state compared to the few states where they are more likely purely culturally American than any other one thing. It used to be a bad look to not be 'America first,' but I suppose times have changed. Very interesting