The educational system is, really, the most undemocratic and discriminatory system in the world, when done properly.
If you don't know what a paragraph is, you are not qualified to be in an English Studies college.
If you don't know how to read and write at the ripe age of 12, you deserve to fail any reading comprehension exam.
Yet simultaneously, the education system, if properly executed, must be the most fair and undiscriminatory system in the world.
Any human being, regardless of race or gender or whatever other views, if he answer the questions correctly, deserves to pass an exam.
If this means that a greater percentage of people of one race pass than of another, than so be it.