The claim is that because the IRS disproportionately audits Black filers (this is true), they will screw them over in other ways. But Evelyn Smith, co-author of the study that documented the bias in auditing says this is bullshit:

https://siepr.stanford.edu/publications/working-paper/measuring-and-mitigating-racial-disparities-tax-audits

That's because these audits of Black households are triggered by the IRS's focus on #EarnedIncomeTaxCredits, a needlessly complicated program available to low-income (and hence disproportionately Black) workers.

22/