They’re not. Rates of extra paternity events vary a lot by social class[1]. I'd be shocked if that wasn’t true for different ethnic groups.
[1] A Historical-Genetic Reconstruction of Human Extra-Pair Paternity
Highlights
• Combining genetic and genealogical data illuminates our ancestors’ sexual behavior
• Gene-genealogy mismatches imply extra-pair paternity (EPP)
• Historical EPP rates were low overall (∼1%) but varied depending on social context
• EPP rates were highest (∼6%) among urban families with low socioeconomic status
https://www.sciencedirect.com/science/article/pii/S096098221...
They’re not. Rates of extra paternity events vary a lot by social class[1]. I'd be shocked if that wasn’t true for different ethnic groups.
[1] A Historical-Genetic Reconstruction of Human Extra-Pair Paternity
Highlights
• Combining genetic and genealogical data illuminates our ancestors’ sexual behavior
• Gene-genealogy mismatches imply extra-pair paternity (EPP)
• Historical EPP rates were low overall (∼1%) but varied depending on social context
• EPP rates were highest (∼6%) among urban families with low socioeconomic status
https://www.sciencedirect.com/science/article/pii/S096098221...