Bolded: it's impossible to be personally responsible for your own success, if you're being discriminated against, even indirectly. Right?
Even if you just set aside all the things related to attitudes and behaviors, towards people with dark skin color.
How are those people supposed to break out of poverty, when they've been purposefully suppressed and denied an equal opportunity to build wealth?
When the suburbs were first being built out, there were explicit requirements in the funding/loans for building them, that they were not allowed to sell to blacks. Those homes built up tremendous equity and wealth for the white families that bought them, which they could then pass down to the next generation.
We're only talking like the 1940's/50's here, I believe.
Not all, but many of problems blacks face in the modern times, are related to poverty and the lack of opportunity to break out of that, because of an almost one-to-one connection between poverty and a culture of drug use/selling. Which breeds gangs and gang violence. Etc. Kids don't get pushed to do well in school, because families were devastated by drug use/gangs. Etc.