The Colonizers banned it because if its true and the Ethiopians are descendants of Menelik then, well Queen Sheba was black and that means King Solomon was to which means Menelik and his descendants are Shemites.
Why did the colonizers only care about the Life, Death and Resurrection of Jesus Christ? Understand that picture of white jesus is still fairly new on the earth, lol.
This is when the Jews and Jesus became white, with the Ashkenazi becoming the jews and Cesar Borgia becoming Jesus Christ and also God.