The lack of family structure/support and absence of healthy boundaries sprinkled on with some seriously abusive mental and/or physical relationships... It doesn't matter what color you are... Your behavior will reflect the damage inflicted until you get right with Christ and get some therapeutic support to help heal the damage.
I guarantee you that the answer is a lot less interesting/complicated/mysterious that your imagination would have you believe.
Why does a bot janny ban people?
Why does a cow go moo?
Why does an impulsive gambler lose it all?
Why does a pitbull attack?
Zero inhibition, just pure instinct/impulse.
Programmed. Predisposed.
The idea enters the head and, almost giddy, the brain approves of the idea, and the body jumps into action, now 100% giddy.
"When an alligator eats a baby no one calls it a radical because everyone knows they are dangerous animals."