Is it clear to anyone else that 'yummyfajitas is implying that the kinds of students who attend poorly-performing schools are genetically incapable of academic performance?

I may be misreading. I'd like a second opinion. I'd rather not assume people I'm arguing with hold revolting core beliefs. This would not be, like, the first time I'd jumped the gun on something like this: I myself hold a (probably faulty) core belief that the median HN participant is likely to host retrograde beliefs about race, which is unfair of me too.