What do you think causes Blacks and Latino's to have such a high dropout rate?

Please stop comparing blacks to latinos, because that is really annoying to me. I will only answer for blacks. Ever since black people got the right to go to good schools, the educational attainment has been steadily increasing. What caused us to be behind was everything that happened to us up until about 46 years ago. All of the events that happened for a few centuries made us hard to be on equal footing(hard to believe for some people).