This is flamebait but I'm compelled to respond.
Racism is a pretty damned weak excuse for this. I mean really someone explain it to me - how does a "racist" thought in a white man's mind force a black man to abandon his children?
Because racism is not "thoughts." I find it helpful to distinguish bigotry from racism. I consider bigotry to be in the realm of individual thoughts. Racism is about power. Racism is more about social constructions than individual thoughts and actions. For example, Jim Crow laws are racist.
Racism is indeed the cause of your observations. Education disparity is a gigantic problem in this country. It's difficult to overcome because we have several centuries of public policy in place that closed educational opportunities to people of color. We've eliminated most of the official policies but we have hundreds of years of effects of those policies to undo. Simply fixing the law isn't enough. We've set an entire class of people on a certain track for hundreds of years and it will take active undoing of that to set them on a different track.
When you don't have access to basic education, you don't have access to higher education. If you get rid of the legal barriers now you have to deal with all sorts of cultural issues such as teachers not understanding your background and experience as a person of color, lack of teachers who have shared that experience and so on. This is very complicated stuff, not easily changed by simply repealing some laws. Maybe you'll dismiss it as "touchy-feely" nonsense but I assure you that every person of color I've engaged around this stuff tells me it's real, whether they are Black, Hispanic, Asian, Native American or whatever.
Drug and alcohol abuse follows. When you have little hope to get a job because demonstrated bias in employment still exists, what motivates you to even try? That's not an excuse, it's simply reality. Some blame it on "inferior culture" or similar nonsense but imagine growing up and seeing your grandfather, your mother, you father, your brother and your sister treated like dirt. I don't know about you, but that would get to me.
I will honestly say I struggle with the single mother family statistics. My wife and I talk about this from time to time, trying to figure out where that comes from. I don't know. But when I see a strong trend in a group, I tend to think that there is something deeper driving that trend than simply a culture of irresponsibility. We have to ask ourselves why we observe what we do, not simply blame people for the observation.
They are a broken people, unfortunately, and only they can fix themselves.
There's that bigotry thing. Start passing laws motivated by an attitude like that and it becomes racism. No people is "broken" and the poor and opporessed can rarely help themselves.