As her Democratic forebears have done for decades, Kamala Harris is attempting to help all Americans, especially Blacks and other communities of color. The reason for this slight drop in support, however, is simply that some Black men are sexist. Thankfully, high-profile men like Barack Obama are educating these narrow-minded voters on the positive potential Harris has for the country.
The Democratic Party will call you racist and sexist even if you're Black or a woman. The only tool in their toolbox is a hammer, so instead of studying what policies Black men might be opposed to — namely abortion up until birth, a poor economy, and open borders — they've decided to beat them over the head with accusations of being sexist. Black men are no longer voting for a party that treats them with contempt.
There is a 50% chance that the Republican candidate for president in 2024 will receive 15.9% of the Black vote, according to the Metaculus prediction community.