Yes, there is no "federal ID" (besides passports and passport cards), but if you've had an ID before, it is not difficult to get a new one in any US state.
What I've described above isn't a theoretical problem, it is an actual occurring issue that has happened time after time.
I don't want to say it's "privileged" but I think you are personally down playing the difficulty these issues raised on specific groups.
If you read the Wikipedia article you will see that minority groups are significantly less likely to have up to date state IDs.
And respectfully anyone without a permanent address can also have a very hard time getting ID.
That point I'm making is that people in these groups will still vote for policies that directly negatively impact their ability to participate in democracy. Not a strawman argument, based on actual voter data.
It could be a part of the larger problem that a decreasing percentage of Americans are even voting at all.