It's true that economic status is sticky (or in other words, social mobility is limited), but with black people in the US it goes beyond that into underfunding,

It's true that economic status is sticky (or in other words, social mobility is limited), but with black people in the US it goes beyond that into underfunding, predatory policing, gentrification etc that serve to compound existing inequities. While I think that we should aim to uplift poor people more generally through economic reform, in the specific case of black people in the US there are still definite institutional thumbs on the scale.