Why doesnt Barack Obama denounce his pastor?

Because his followers irrationally believe that he can separate himself from the racism of his church and its pastor. That doesn't work. Obama has been a member of that church for 20 years. Part of an individuals comfort in adhering to faith and religion is because of shared beliefs. Obama has allowed that anti-Semitic racist to bring him to salvation, marry him and his spouse, baptize his children, and serve as a mentor as well as a personal and spiritual adviser. He ociates with Dr. Jeremiah A. Wright Jr by choice, not chance. He is racist by ociation and inaction, if nothing else.