The case for heredity in Christianity and other religions
So as you study heredity and what we have learned the past few decades, the traditional religions' view of all humans being equal sounds naïve, mislead and outdated, from a time before adoption studies and frequent contact between the extremes of the human genome.
However, there is one natural divide between equal humans that was obvious to the ancients; the sexes. Galatians 3:28 says
"There is neither Jew nor Gentile... nor male and female, for you are all one in Christ."
Women are nonetheless treated as cognitively different from men, as told in 1 Timothy 2:11-14
"A woman/wife should learn in quietness and full submission. I do not permit a woman to teach or to assume authority over a man/ husband, she must be quiet. For Adam was formed first, then Eve. And Adam was not the one deceived; it was the woman who was deceived and became a sinner."
The major religions have such doctrine, and also practice it by not ordaining women the same roles in the clergy as the men, even post-Vatican II the Catholics refuse to!
Women and men can be equal in value, but still be very different. Ergo, the unique types of human found around the world can be equal and not totally fungible. Heredity will be accepted in our lifetime as natural law even by the bishops, the imams and the rabbi, just like heliocentrism and evolution. Do you agree?