The point here is, correlation is not causation. For black people in America:

There was a series of policies that set them up for poverty. Slavery, sure, but more recently and relevantly redlining and other policies that set up black communities for failure. Black people were all forced into the same, poor communities (nobody would sell them homes anywhere else); their communities were ravaged at times by urban development ("where should we put this highway? Just stick it through the black neighborhood"); they were all put in the same schools that lacked basic essentials (and when they tried to go to other schools, white parents fled to the suburbs), they were discriminated against in hiring.

They were ravaged by the drug epidemic, and they were ravaged by the tough on crime approach that responded to the drug epidemic. For example, the consequences for possessing a small amount of crack were much, much greater than for possessing an equal amount of regular cocaine-- so, you wound up with poor black people getting ridiculously long prison sentences where wealthier people received relatively light consequences for the same crime. Likewise, there were many more police on black neighborhoods, with less oversight, so poor black people were much more likely to be caught and harshly punished for really low-level crimes, and noncriminal black youth were more likely to develop massive fear and distrust of the police due to antagonistic policing methods.

This in turn destroyed black families (imagine if a quarter of the men you know who ever did any illegal drug went to prison and their kids spent a portion of their childhood without a father).

All this taken together means that more black people are poor, more black people are less educated, more black people are in prison, etc.

But it doesn't mean black people are genetically inferior.

(Happy to provide a source for anything mentioned above upon request!)