This assumes that the difference in poverty and incarceration rates between blacks and whites is driven by racism.
I would refine that to say that, when poverty rates and incarceration rates are at rough parity for whites and blacks from similar backgrounds, we might be getting closer. That is, if a white from a single teenage mother is no more or less likely to be poor or in prison than a black person, we can start to say that racism is mostly solved.
It’s like the “women earn 77 cents when men earn a dollar” meme. The difference exists, but it is not driven for the most part by sexism, and entirely eliminating sexism isn’t going to bring women’s earnings into parity with men.