In what one professor calls “affirmative action” grading, Brooklyn College wants to “re-educate” instructors whose minority students have lousy grades, The Post has learned. In an eight-point “anti-racist” agenda shared with the school community this month, college president Michelle Anderson said the school had “recently raised funds to offer professional development to faculty in classes with the highest racial disparities in outcomes” and the most grades of D or F or withdrawals.