Culture and family structure evolved from slavery, mass displacement, mass murders, and even to this day, mass incarceration, Indian reservations, etc. Do you think variables like culture and family structure are not influenced by government power?
As a result of how the US was created, certain "cultures and family structures" are more likely to live in safety, have more privacy, receive leniency in criminal proceedings/receive "second chances", be given the benefit of the doubt by authorities, etc. Certain cultures and family structures are also more likely to have accumulated wealth over generations, due to government policies that favored their culture and family structure over that of others. This translates to unequal legal opportunities in most everything.