Let's say you want to obtain a voter ID in South Carolina, for example, because you have no other photo ID. You'll need to present a birth certificate. What, can't find yours? Good luck, you'll need a photo ID to obtain a new copy of that birth certificate.
Perhaps you are an 18-year old high schooler in Alabama eligible to vote for the first time. You don't have a driver's license, because you can't afford a car and don't drive. Your closest DMV is 40 miles away and only open one day out of the week. There's no public transportation, so you'll have to coordinate a ride with someone who can take you on a day the DMV is open. Previously, this voter would be able to show up to their polling site on the day of the election with a bank statement and vote.
It would be one thing if voter fraud was prevalent and all these new measures needed enacted, but there isn't. The rate of fraud in U.S. elections is close to zero. Instead, they're yet another set of hurdles voters, particularly minorities and the poor, face when asserting their right to vote.