"[You] have put on the new self, which is being renewed in knowledge after the image of its creator. Here there is not Greek and Jew, circumcised and uncircumcised, barbarian, Scythian, slave, free; but Christ is all, and in all." (Colossians 3:10-11 ESV)
Whatever the cultural strengths or weaknesses of any race, it remains that human beings were created in the image of God, and however distorted, all humans still bear that image (Gen. 9:6; Acts 17:22-31).
Even when God dealt specifically with the nation of Israel, he made it very clear to them that he was not blessing them because of any superiority they possessed (Deut. 9:4ff).
Every human being who comes to Christ comes with the full awareness and admission of having no superiority. We come to the level ground before the Cross with our own sin, our own rebellion, our own guilt. If we feel superior in any way to any other human, then simply put, we have not come to the cross of Jesus Christ.
And in the end all races will be represented in the Kingdom of Christ...
And they sang a new song, saying, "Worthy are you to take the scroll and to open its seals, for you were slain, and by your blood you ransomed people for God from every tribe and language and people and nation, and you have made them a kingdom and priests to our God, and they shall reign on the earth." (Revelation 5:9-10 ESV)
The many tribes and peoples and nations become one kingdom to inherit the earth. R. B. Kuiper observes, "The ultimate solution to the race problem is found in Christianity. No matter how great the differences among the races may be, in Christ they are one, and believers of all races are members of His body." (The Glorious Body of Christ)