This was based almost exclusively on the political action of Democrats in southern states.
Black Americans had different experiences in other parts of the country.
See: Thomas Sowell.
Black Americans, like millions of others, relocated to city centers for work. Poverty in city centers was addressed with welfare programs.
Poverty simply became a government-funded cage.
Democrat campaigns to encourage black Americans to turn to government over free markets resulted in more densely populated black American poverty.
Education.
Healthcare.
Environment.
All dramatically worse under government control.
The results show black Americans clustering on the negative side of those metrics.
They observe the urban environment.
'Racism' is the cause.
'Systemic racism' is, essentially, the progressive Democratic model of government managed populations.
They do not consider many groups condensed under 'white' experienced similar discrimination, relocated to cities for similar reasons and became trapped too.
People with family history dating back to the revolution were less likely to turn to government for support.
The Irish were culturally used to oppression and poverty.
Korean immigrants were culturally more self-sustaining and built their own small businesses.
French and German immigrants organized differently than the Dutch and so on.
Health.
Environment.
Crime.
All depend on if you or the government is providing for you.
Progressives view the racial economic gap as proof of racism, when it is proof of progressive economics.
Regardless of condition of birth, the American individual can choose which path to take.
The progressive left denies this reality.
But more government interference will only make it worse.
History is very clear on that fact.
Yes.
But its not 'systemic racism.'
Its systemic progressivism championed by the Democratic party for more than a century.