In the paragraph you’re quoting, I’m talking about what you call transitory economic status above. The point is that if you’re trying to address that, it makes no sense to lump poor Asian kids in NYC together with wealthy white kids. Or to treat poor white or Asian kids differently than poor Black or Latino kids.

I address systemic racism in the second to last paragraph above, and I agree that in that context, everyone but Blacks and native Americans should be in the advantaged group.