The Difficulty of Talking About Race, Racism, and Social Justice in America

After reading the attached article "Ten lessons for Talking About Race, Racism, and Social Justice," why do you think it is difficult for many Americans to talk about these issues? Is it easier to talk about them with someone of their own race? If so why? Ten Lessons For Talking About Race, Racism, and Social Justice (2) https://raritanval.instructure.com/courses/3787966/files/269447317/download