White people collectively did this to Black people. The cumulative impact of racism has diminished Black women to the lowest rung. Black men and Black women experience racism, but Black women also experience sexism. There is a gender-pay gap and a race-pay gap and Black women are disadvantaged by both. However, there is not a significant difference between Black men and women incomes, Black men only make slightly more, from the data I've read.

Essentially, it would be good, in my opinion for us to focus on closing both the racial and gender pay gaps, because then both Black men and women would be making money equitable to white, non-hispanic men.

This link below this paragraph is interactive and you can use it to put in just black men and black women, or just black men and white men, etc, so you can see the data for yourself. While the trope is often spread that Black women make more, we actually don't. Collectively, I think if Black women, Black men, White women, and Latino men and women made this a priority, we could mitigate this problem legislatively by making it illegal to pay any employee less for the same position when race, gender is the only difference between employees.

https://www.dol.gov/agencies/wb/data/earnings/median-annual-sex-race-hispanic-ethnicity