It is noteworthy when science validates common sense — in this case that ID requirements do not deter voting. Perhaps now, or soon, we can jettison racial grievance from this topic of political concern.
Proving one’s identity at the polling place is necessary for election integrity. It is not necessary because it confirms you are who you claim to be, but because it validates your record in the registration database.
There are other ways to perform this validation. For example, voters could be required to visit the registration office just prior to an election to have their registration checked, but the procedure at the polls is both sufficient and much easier.