This is an AP course, which allows high school students who are going to college to earn college credits alongside their high school diploma. This helps college bound students prepare for college and it helps reduce undergraduate tuition costs for these students. There are numerous AP courses that high school students routinely take, such as AP American History, AP European History, AP Biology, AP Environmental Science, AP Psychology, AP Calculus, etc. Students choose these classes, they are not forced into them.
African American Studies is taught in college just as these other subjects are. Some students desire to eventually major in this subject at college or wish to take this class to fulfill a college requirement and save on undergraduate tuition costs.
There is clear educational value present here along with economic value for individual students.
What harm do you see in offering such a class to these future college students?