This is a good point, making explicit the repeat offenders issue, which feeds into minimum sentencing requirements.
Just to reiterate, I'm not saying this is a conscious demonization; so I didn't mean to imply that a judge looks at a black defendant and says "I don't like the look of you boy," or something like that. I mean that this is all part of a cycle that cannot be reduced to any single individual involved - nor can it be blamed on the system per se, since the system is just doing what it does. It would take immense restructuring to change anything, and restructuring of that size is bound to have unforeseeable negative consequences elsewhere.
By cycle, I just mean that cops tend to target blacks for certain offenses because they know that blacks are more likely to commit certain offenses - and this tends to be accurate, reasons aside. So they secure more arrests and more charges by doing so, judges get more repeat offenders, and more blacks are sentenced to harsher prison time. And it's pretty well-documented that prison doesn't do much as far as rehabilitation goes, so on being released they revert to old practices and behaviors; and on top of that, members of their families have likely engaged in such behavior too in order to make up for lost income.
Focusing on just one aspect of this isn't enough, because weakening one component of the cycle means that it can be exploited more effectively at other points. So it just keeps going. There is, however, a narrative and general organization of racial optics (these are vague and abstract terms, I know) that informs this cycle, and it's very tough to make any changes at all while the narrative remains. And in some respects, that narrative may be accurate; but the power of suggestion is as powerful, if not more powerful, than telling a truthful story.