Common Core has been dumbing down American children for awhile now and for teachers to demand the end of standard English is just absurd. Black people are not dumb. White people are not dumb. If one chooses to speak improper English, that is his/her choice BUT if teachers demand this, conservatives (and rational people) will vehemently reject it, as well we should. We are judged by how we speak and if radical people want to change English as we know it, they will have a fight on their hands.