I think you missed a critical point of The Bell Curve: by subsidizing subnormals to spew out more subnormals that they neither raise properly nor support, we’re increasing the subnormal population as a percentage.
I met a WW II vet earlier this year, in his 90's, an African-American man of incredible manners, disposition, and integrity.
The difference between him and the current generations of sloths (both black, white, and all races for that matter) was that he was raised by a stout, two parent family, in a Christian home. He was taught love of country in his schools, and hard work and discipline at home and in his church. His character was molded through hardship and adversity.
Romans 5: 3-4
"Not only so, but we also glory in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope."
With illegitimacy at over 70% in the black community (approaching 95% in some inner cities), and several generations now raised to feel entitled, absolved of responsibility and civilized behavior, and with politicians and the media making every excuse for them - they are a "culture" that has descended into the sewer.
That WW II veteran might as be a Martian to them, because they are that different.