Jesus was most likely not black or white. He was the color of that time period and day. Yes, there is unfortunately prejudism. We live in a world filled with hate, prejudism, jealously etc. because this world is filled with sin and is fallen. I don't take any of the images I see of Jesus seriously no matter what color they are because they arn't reality. It doesn't bother me because what He has done for us - like died for our sins and resurrected is what is important.
What Jesus really looks like in reality is far beyond what we can image in the flesh- since he is the Son of God and is God.