We differ on what the facts are. If you read the Wall Street Journal editorial, you will find some of the accepted facts.
I'm not certain that we do, but I'm not certain about your viewpoint.
In your comments on the Ruby Payne articles, you seem to suggest that a major problem with inner city children is their lack of language skills, and also cultural differences, and therefore a different style of teaching (as well as committed and competent teachers) would be needed in those areas to show real results - which is both a political and educational issue.
On the other hand, your Bell Curve comments seem to indicate that you think the situation is hopeless and inner city schools will never be anything but failing, and it is unrealistic (as well as politically incorrect) not to acknowledge this...
So I'm trying to understand where exactly you are "coming from" in this area.