Roughly 1 in 9 black men between 20-34 are currently incarcerated (11%). It's probably a much higher percentage that have been incarcerated in the last 3 years.
2. 11% still doesn't go a long way in explaining the "fatherless issue", although we probably need firm numbers on that too.
That's absolutely enough to tilt the data significantly.
https://www.jacobinmag.com/2017/11/mass-incarceration-statis...