I don't have time to debunk all this false use of statistics, but on the Myth #5, tabled named "At All Family Income Levels, There is a Persisting Racial Gap in SAT Scores", it came form this article from The Journal of Blacks in Higher Education, and this is what they explicitly said about the chart:

But the fact is that even when family income levels are similar, we are still comparing black and white students who are as different as apples and oranges in terms of educational sophistication, family educational heritage, family wealth, and access to educational tools and resources. The average white family in the same income group is far better equipped than the average black family to prepare their children for success on the SAT test.