By the US federal definition, a lot of latinos are white. Hispanic/Latino is classified as an "ethnicity" not a "race" so you can be e.g. white/latino or native-american/latino
> Hispanic/Latino is classified as an “ethnicity” not a “race”
Hispanic/Latino (and not-Hispanic/Latino) are the only ethnicities in that context, and it exists specifically to enable categorization that reflects the social construction of Whiteness at the time it was created while not obviously breaking the (bogus, in any case) biological rationale for the construction of “racial” categories, which is why most categorizations of data using that ethnicity treat Hispanic/Latino as another bucket alongside the racial buckets, from which everything of either White or every race (usage differs) is transferred if Hispanic/Latino ethnicity is also indicated, leaving the effected race buckets with only the non-Hispanic/Latino elements.
Several South American countries have more European ancestry than does the US.