All I know is throughout history is what happened to mixed race people in different areas. Ostracisation in a lot of Asia, straight up killing in a lot of Africa even when it was just different tribes.

Whites were at least more generous in that there's a reason why we have house slaves and field slaves......and Brazil. The problem isn't interracial couplings, it's there's active measures to stop it because it broadcasts how you don't need to be confined by characteristics like race in life, which one side REALLY hates.