SNIP
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>I didn't see anywhere in the original sentence any will to go deeper into the why and how, it was only "every black baby", not the social circumstances. And of course the problem is exactly there, in the economics of a ghetto, of low education, of inaccessibility of health services etc.

The "social circumstance" that there are a disproportionate number of non-whites (skilfully avoiding the 'racist' label I hope) convicted and in jails is well known and accepted. Surely the speaker didn't have to refresh the listeners' minds about this.
So it would follow that if there were fewer non-whites (by virtue of stopping outright that population's growth) it should have some effect on the crime rate and simple logic says that it would go down, as would the proportion of non-whites to whites in jails.

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>The kind of crime we're talking about is poor man's enterprise. The whole thing is much more complex, and blurting out a patently race-stained remark is a perfect diversion, which serves only to move the discussion into the "is America still racist" direction, and away from the actual causes. Which is economics, distribution of wealth, etc.

It is self-evident to many observers, after Katrina in New Orleans, that there remains some form of "racism" in America.
You say the remarks serve as a diversion from the real issue.
First, it is clear to me that any such "diversion" has been caused by the PC police alone.
Secondly, the form of racism that has been exposed by Katrina indeed appears to be along the "economics, distribution of wealth, etc." line. So where is the "diversion"?

BUT I still don't think that the original statement had anything to do with "racism" per se, but rather was a blunt and forceful case to demonstrate the absurdity of the postulation that abortion decreases crime rates. Because even if it did, it is impossible to use that to any "advantage" in fighting crime.