The US is also a prime example why simply getting rid of an ID does not actually solve any of these issues for the mentioned groups. If anything you can see more problems with voter registration and information that partially would be solved by a unified ID issued to each legal citizen.
Or in other words: People will always find a way to exclude groups on purpose and they will always be lazy to implement new measures to include a smaller pool of people, especially if they feel including those people might not even benefit them.
And ID is a good first step but it's of course also not enough to reach everyone who legally can vote.