I had the EXACT same experience in an all-black NYC high school. No time to listen to the subject matter, too busy making excuses for themselves, dancing around the classroom, having no idea of proper classroom decorum, telling the teacher to "suck my d_ck" in every other sentence, threatening to "find you after school and jump you", jumping on each other in their seats, coming late to class, wandering the halls in herds instead of attending class, stuffing their faces with junk food in the classroom, throwing materials around, throwing potentially injurious stuff right at me, and just acting out in general to deliberately disrupt the lesson. If they are not interested, why should anyone be able to learn anything?
The minute I hear "da white man keep us down" or any similar excuse, I just want to gag. No one is keeping them down except THEMSELVES. They foul their own nest and then they want to come to your neighborhood (thank you, busing!) and foul yours. You work your rear end off so that your kids can go to a nice school--so that the ghettokinder can come there, beat up your kid, destroy equipment, scar the desks with graffiti, and disrupt the classes so no one can learn.
Of course, it's the TEACHER'S fault, don't you know.
"They foul their own nest and then they want to come to your neighborhood NATION (thank you, busing UNITED NATIONS, OBOZO, OPEN BORDERS, IMPORTING ALIEN IDEOLOGIES, MUSLIMS, ETC!) and foul yours WHAT WISER MEN HAVE CALLED "THE LAST BEST HOPE FOR MANKIND". You work your rear end off so that your kids can go to a nice school LIVE IN A FREE AND PROSPEROUS NATION --so that the ghettokinder FLOTSAM AND JETSAM OF THE THIRD WORLD can come there, beat up your kid HERE, SUCK UP VIRTUALLY UNLIMITED WELFARE "BENEFITS" YOU PAY FOR, destroy equipment, scar the desks with graffiti, and disrupt the classes EVERYTHING so no one can learn TO THE POINT WHERE LIFE AS WE OLDER FOLKS HAVE KNOWN IT IS GROUND INTO THE DIRT.
There, we've just described the last 20 years of government under Dems and Pubbies but most especially, the last 6 or so.
Of course, THAT'S BEEN THE PLAN ALL ALONG, hasn't it?