divisive - Causing disagreement or hostility between people, tending to disrupt unity or harmony.
The election was fought over the deeply divisive issue of immigration, and people on either side of the issue can't see things from the other point of view.
mogul - An important or powerful person, especially in the motion picture or media industry
With her universal name recognition, massive personal fortune, and successful television shows and movies, Oprah Winfrey is considered one of the biggest moguls on Earth.