Biden was a big part of that.
He drafted the The Violent Crime Control and Law Enforcement Act of 1994
put a lot of blacks in jail
then Clinton's 1997 Adoption and Safe Families Act took their kids and put them in foster care (then probably trafficked)
Major proponent of Adoption and Safe Families Act was Richard Gelles, father of CNN Producer David Gelles
https://www.pbs.org/wgbh/pages/frontline/shows/fostercare/inside/gelles.html