Did abortion lead to a reduction in black crime?

Steve Sailer says no:

That kind of racial eugenics thinking is clearly the reason so many people assume Levitt is right, even when I show his theory badly fails its obvious tests. They understood that Levitt's "wantedness" theory is a euphemism for legal abortion cutting down on the number of blacks (a point Levitt made more explicitly in his 1999 first draft paper, written with John J. Donohue).

But the reality turns out to be much more complicated, when you first realize that legalized abortion led to almost 30% more pregnancies. Indeed, legalized abortion appears to have hollowed out the black middle and working classes, while expanding the black underclass.

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