I will say this every time Christ's appearance is brought up;
Who cares?
Is it really that important?
What is important is that he is the Son of God. Different cultures depicting him as one of their own is just a part of Christianity's universality.
Isnt this based off if he was arab, but he was the artificial insemination of God. So Jesus would look like God not the local arabs and are you tell me the closes thing we have to God is not a white male?
In the bible it says in Matthew that Judas had to point out Jesus for the soldiers that arrested him because they could not tell him apart from his disciples.