https://www.aclu.org/fact-sheet/oppose-voter-id-legislation-...> Minority voters disproportionately lack ID. Nationally, up to 25% of African- American citizens of voting age lack government-issued photo ID, compared to only 8% of whites.
I did not make up the statistic.
I do not endorse it or wish it to continue, but numerically, that is what it is. This is probably the largest reason one side of the American political spectrum, the one who would benefit from lower racial minority turnout, supports tightening the laws.
In tight elections like we routinely have, that statistical disparity can be enough to alter electoral outcomes.