Many people claim to be "Christians", but their actions betray their words. Simply saying "I'm a Christian" or going through the motions of "christianity" (e.g. attending church, being "good") doesn't make one a true Christian anymore than standing in a auto repair shop makes one a mechanic.
A true Christian imitates Jesus. Jesus made no distinction between races (meaning no one race was better than another); He had love for all peoples.
It is written -
“‘These people honor me with their lips, but their hearts are far from me. They worship me in vain; their teachings are merely human rules." - Mathew 15:8-9
"Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God.Whoever does not love does not know God, because God is love." - 1 John 4:7-8
"But the cowardly, the unbelieving, the vile, the murderers, the sexually immoral, those who practice magic arts, the idolatersand all liars— they will be consigned to the fiery lake of burning sulfur. This is the second death." - Revelation 21:8