The first feminists were not perfect people.
Yes they may have been racists, but they were no more racists than their male counterpart. All of america was a lot more racist then, than they are today. This is an unfortunate Fact. It doesn't lessen the value of the pioneering work of these women.
Today ALL women in America, including black brown, asian etc. benefit from their hard work. And it is as it should be.
And the part about aborting black babies -- that's just a right wing Conspiracy theory, using every single opportunity to twist anything to their advantage.