It is GOD who, in His love and wisdom, dispersed mankind into different races, features, countries, and cultures. And while God desires this to be a distribution and intermixing to be a thing of great beauty and harmony, without God at the center of our differences, our world and societies will follow the natural instincts of man, which is to seek power, domination, division, and conflict. Mankind has turned what God meant for beauty and harmony into a series of ugly rivalries, anger, violence, and war.
Here's a thought-provoking video speaking about what happens when Christian churches foolishly embrace the sensibilities and strategies of the CULTURE and those with an agenda, supposedly to navigate our divisiveness and differences, as opposed to following God's directives of coming together around Christ and His teachings: https://www.youtube.com/watch?v=ZNOLzp7Jcd0
There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus. (Galatians 3:28)
After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands, 10 and crying out with a loud voice, “Salvation belongs to our God who sits on the throne, and to the Lamb!” (Revelation 7:9-10)
26 From one man he made every nation of men, that they should inhabit the whole earth; and he determined the times set for them and the exact places where they should live. 27 God did this so that men would seek him and perhaps reach out for him and find him, though he is not far from each one of us. 28 ‘For in him we live and move and have our being. ’ As some of your own poets have said, ‘We are his offspring. ’ (Acts 17:27 -28)