Instead of blaming "racism", when the law itself clearly is not, perhaps they should be questioning why the percentages are what they are. Racism? I question that.
Though Black Americans make up about 13 percent of the U.S. population, one-third of Black men have at least one felony conviction, according to a 2017 report.
Black North Carolinians account for nearly 53 percent of the state’s prison population — though they make up only 21.5 percent of North Carolina’s overall adult population, according to a 2016 report from the nonpartisan racial justice organization NC CRED.

Judge strikes down North Carolina felon voting law | The Hill