https://journals.sagepub.com/doi/full/10.1177/00027162221120759
Data for this study comes from the LIS, which is an archive of cross-nationally and historically harmonized individual-level nationally representative datasets. U.S. data in the LIS come from the Annual Social and Economic March Supplement of the CPS. The main advantage of using the LIS over the underly- ing CPS is the higher-quality and improved income measures that comprehen- sively incorporate taxes and transfers and therefore yield improved poverty measures. I analyze twenty-five waves of LIS data for the United States from 1995 to 2018. I select this time period because it includes all the U.S. datasets for which all variables in the study are available.1
Not the argument. Nor is there an argument here. The question could be boiled down to: are there more black single mothers? Yes, categorically, unequivocally yes. Doesn't say anything about the fathers race though, granted. I kinda went by the fact that most couples are not "mixed race". Which is a bit presumtous by me, but not a bad presumtion given history.
Haven't made any claims of any reasons. Just that it is. And therefore the last statement in the meme is kinda meh and sticks out among the others.