God is faithful to always reveal to us His heart and mind for mankind. It was never God's intention for Adam's children to be segregated on issues of race and culture. Let us look at what God said in the Garden of Eden.
And God blessed them, and God said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth. - Gen 1:28
It seems here that despite the differences that would arise, He gave them all one purpose, which was to care for the earth.
God that made the world and all things therein, seeing that he is Lord of heaven and earth, dwelleth not in temples made with hands;...And hath made of one blood all nations of men for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation; Acts 17:24&26
Adam is the beginning of every race on this planet. His blood is the blood which flows through their veins. Notice the perception that God comes from. He always sees oneness and unity. However the enemy has done a work in man - and that is a work of hate. This hatred has caused men to compare themselves with one another. Focusing on the differences of flesh and deeming some more blessed than others. We must see the segregation as devilish first!
Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace; - Ephesians 2:15
It was the work of the devil in man that caused sinful issues of racism and classism (and any type of sin at that). This is the enmity in the flesh of man kind. They cannot be united because of the Spirit of division in them (the spirit of the devil). No matter how much we march, argue or pray for this unity, unless the Spirit of Oneness (the Holy Ghost) fills them, man will forever be alienated from each other.
I thank God that in Jesus Christ, His testimony is that It is the spirit that quickeneth; the flesh profiteth nothing (John 6:63). The Spirit has broken down the middle wall of partition that has separated us, and made us all one new man in Christ Jesus. We may look differently on the outside, however, now He commands us to know no man after the flesh, because it profiteth little! The flesh no longer defines the those that have been born again. In the Spirit we are all one, and we all are the same! We are very Christ.