I don't think you two actually disagree. You want to send your kids to a place where the parents value education, and you're using ethnicity as an easy indirect way of measuring this. A lamentably reasonable strategy.
What decision? He simple stated, accurately, a fact. How can a fact be racially biased?
White and Asian neighborhoods generally generate higher property taxes than black neighborhoods. Schools are largely funded by property taxes. Therefore it should come as no surprise that White and Asian schools are on average better.
His causality is off, way off. That's really the main issue. Both parents here have the same motivation, admirable enough, but one chooses to subscribe to an unreliable predictor for his decision making.
A predictor that is toes a really fine line between statistical reliability and outright bigotry.
In any case, we know that socioeconomic status is a far better predictor of educational success than race. There is a Hugh correlation between race and SES but it's far from causal. I think the main objection here is that he seems to claim it is.
I might have the same high motivation to be an awesome games programmer, but that still doesn't mean I will be as good as Carmack.
I don't fault LoveLinux for his viewpoints, as they are based on his observation; and he is trying to make the best decision for his kids... I think if what he/she had said, was said by Bill Cosby or George Lopez, we would be applauding their honesty...