>I’ll need a cite for Christians against anti-miscegenation laws.
>In 1967, two Catholic social services agencies and eleven bishops in the states that still had laws prohibiting interracial marriage used a “friend-of-the-court” brief in Loving v. Virginia to urge the United States Supreme Court to strike down the laws in Georgia, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and West Virginia.
Going back to the topic of eugenics, since you posted a link about eugenics: the Catholic Church has been against eugenics since it first got popular, when the 30 states you mention legalized forced sterilization.
>In 1967, two Catholic social services agencies and eleven bishops in the states that still had laws prohibiting interracial marriage used a “friend-of-the-court” brief in Loving v. Virginia to urge the United States Supreme Court to strike down the laws in Georgia, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and West Virginia.
https://ccgaction.org/node/1011