#blacklivesmatter racism is a human problem

In agreement with this result, no effect was found for names of Latin origin, which aren't typically segregated by class in Latin American countries.

This is factually wrong. In many, if not all, Latin American countries, European sounding surnames (English, Spanish, French, Italian) are commonly associated with a higher socioeconomic class. In contrast, indigenous names are usually identified with lower socioeconomic class.

If you’re talking only about specifically Latin names in Latin America, then I’d wager it’s the name deal. The only difference would be that less common surnames are associated with higher socioeconomic class, and common surnames are associated with lower socioeconomic class.