The real bottom line is that when you create an underclass of people whose neighborhoods get firebombed or bulldozed when they get too affluent (see e.g. "Black Wall Street" in Tulsa and Auburn Avenue (formerly "the richest Negro street in the world") in Atanta, respectively) and had generations of absent fathers due to persecution for things like "vagrancy", of course they're going to stop giving a shit about laws that bind but do not protect them! It's entirely rational that people systematically excluded from being able to get ahead while acting within the law, and whose behaviors are deliberately criminalized in order to target them, would end up committing crimes at higher rates than the people benefiting from their oppression did. In other words, even if it's true that they actually commit crimes at higher rates (as opposed to being accused at higher rates or being less likely to avoid conviction, as you pointed out, which just make the statistical bias even worse by compounding on top), even that is disingenous because it ignores that the disparity is caused by classism and institutional racism, not anything intrinsic to their race itself. The fiction that it's somehow their own fault is like a society-wide version of "stop hitting yourself."