https://www.psychiatry.org/news-room/news-releases/racial-disparities-in-childhood-adversity
For the study, led by Nathaniel Harnett, Ph.D., director of the Neurobiology of Affective Traumatic Experiences Laboratory at McLean Hospital, researchers analyzed surveys and MRI brain scans of more than 7,300 White children and nearly 1,800 Black children in the U.S. who were 9 and 10 years old. They found Black children displayed small neurobiological differences reflected as lower gray matter volumes in the amygdala, hippocampus and prefrontal cortex compared with white children.
“Our research provides substantial evidence of the effects structural racism can have on a child’s developing brain, and these small differences may be meaningful for their mental health and wellbeing through adulthood,” said Dr. Harnett, who is also an assistant professor in psychiatry at Harvard Medical School.
If you can't say it's genetic, someone is to blame.