Maybe you missed....
"I have stayed in my classroom with a group of students discussing ideas and playing chess until the janitor kicked us out. I was the old gentleman, imparting my history, culture, personal loves and triumphs, defeats and failures to young kinsman."
Sounds like a real monster......./s
Sometimes I fancied myself Tyrtaeus, the Spartan poet, who counseled the youth to honor and loyalty. I never had this kind intimacy with a black student, and I know of no other white teacher who did.
That alone makes the author either wildly incompetent or (more probably) a liar.
Every white urban teacher I know has had some success mentoring black students. And by mentoring, I don't mean just giving advice once or twice. I mean guiding the student on a regular, long-term basis.
In the broken urban school where I taught, there were certainly more mentoring failures than there were mentoring successes. But there were successes, many of them.
The author claims that he knows of no white teacher that has ever had success mentoring an urban black student. That claim alone makes the whole article suspect.