That's only half the problem.
Most public school teachers, and specifically urban school teachers, are devout Democrats, and many of them are non-white as well.
Speaking publicly about Black and Hispanic student violence is not just a professional mistake, it's a political sin that would make you an instant pariah among your fellow teachers.
You have a point. Atlanta teachers came up with a solution some time back - they changed the answers on the kid’s tests so it looked like they were being taught something.
Then there’s handing out the answers ahead of time and allowing cheating by ‘looking the other way’. Yeah, ‘teachers’ do that ... and teaching to the test...
The old ‘social promotion scam’ was caught and exposed - too many black kids graduating unable to read their diplomas. Teachers were not happy about that one...
Yes, there are a lot of ‘teachers’ who are part of the problem... but they still know the truth about black kids not learning. Black kids being violent. Black kids with gang and criminal problems. They know.
They also know none of these problems can be solve by pretending they don’t exist.