Not really, since in most (all?) U.S. presidential elections to date there has not been a black woman on the ballot. I think there's an important semantic difference between losing and not winning. The equal but opposite statement to the OP would be that a black woman has never won the election, which is true.
Read the wiki article. If a black woman has never been on the ballot then every possible statement you make beginning with “for all black women who have ever been on the ballot…” is true.