I admit, I just read the introduction and the conclusion because, yeah, 42 pages. But, did you read it?

Yes, the paper states that there are no income gaps between black and white women, but also states categorically that a) black males experience significantly worse outcomes and receive lower incomes than white males, even after controlling for education, ability etc. And b) that neighbourhood disparities, lack of equal opportunity, and racial bias are the main drivers of these disparities.

The whole paper is basically a study on the impact of racism on black men and boys.

From the conclusion:

"The black-white gap – the largest gap among those we study – is driven entirely by sharp differences in the outcomes of black and white men who grow up in families with comparable incomes [...] Closing the gap in opportunities between black and white children at a given parental income level could therefore eliminate much of the black-white income gap within two generations.

[...] our results suggest that efforts that cut within neighborhoods and schools and improve environments for specific racial subgroups, such as black boys, may be more effective in reducing the black-white gap.

Examples include mentoring programs for black boys, efforts to reduce racial bias among whites, or efforts to facilitate social interaction across racial groups within a given area."