That's as may be, but my point was orthogonal to theirs and not meant as agreement or disagreement.
My point was a "don't shoot the messenger".
A politically powerful minority calls ability tests racist because they make minorities look bad. An opposing offensive minority uses those same ability tests as evidence that minorities are simply inferior. Courts ruled that those using the tests should be presumed racist because the results show racial differences.
The result of all of this is a policy, meant to help minorities, that fails them. At great expense to all of us.
And an actual easy to identify factor which sustains racial differences - poor educational policies - is politically off limits to think about. "Because that would cost money."
The resulting mess is in alternating turns absurd and sad.
Your first sentence is the result of bigotry against those with "enhanced" melanin content, not the cause.
The cause is laid out in your second sentence.
Resolve the systemic bigotry (not just against those with enhanced melanin content, but against those with the least resources as, at least in the US, most schools are paid for by local property taxes, making the poorest areas the ones with the worst schools) and put us all on a level playing field and we'll be a much fairer society IMNSHO.