This is quite interesting. quite a lot of anti-abortion sites make this claim, but an equal number post the "shocking" statistics of abortion, that clearly show 2 to 3 times as many abortions being performed on white women and not the other way around as claimed by groups like "Georgia Right to Life".
Of course, they might not be comparing like with like. There are simply more white women in the US than black, hence more abortions. So perhaps we should ask what is the abortion rate by ethnicity?
Of course finding the actual facts on such a loaded subject is never going to be easy, but the 'All Other Persons' blog has - IMO - a very measured analysis here.
A quick overview:
Abortions per 100 live births have held steady in black women since 1973 (when there were 42.0) to 2004 (when there were 47.2). Over the same time period abortions per 100 live births fell sharply in white women from 32.6 to 16.1. Hence as of the last figures released by the DHHS and CDC there are approximately 3 times as many abortions (per 100 live births) among blacks as whites. These figures are a lot more up-to-date than those commonly found on pro-life sites, so either they're unaware of them or, as I suspect, they reject the recent data since these show a marked decline in abortions (in whites) that doesn't fit with their agenda.
However the blog doesn't stop there. It also notes that there are 98 unintended pregnancies per 1000 women of black origin compared to 35 per thousand women of white, again almost a 3 to 1 ratio. And also the abortion rate is ~4 times as high among women living below the federal poverty level compared to those significantly above it, and again, so is the unintended pregnancy rate.
Finally, AOP quotes another report based on the responses of people electing for an abortion, "Three-fourths of women cite concern for or responsibility to other individuals; three-fourths say they cannot afford a child; three-fourths say that having a baby would interfere with work, school or the ability to care for dependents; and half say they do not want to be a single parent or are having problems with their husband or partner."
So Catherine Davis and Georgia Right To Life might think they're being clever by making this a race issue but if they actually achieved their goal of making abortion illegal again, it would act to trap untold thousands of black women in poverty, or more likely force them to risk their health and liberty pursuing illegal alternatives.
All Other Persons Blog
Abortion and Women of Color (Guttmacher)
Facts on Induced Abortion in the US (Guttmacher)