> In other countries everyone has an ID automatically

(Splitting hairs here but) this isn't true: in some countries, but not all.

In some countries ID is an optional document you only need to acquire if you want to drive, vote or travel internationally.

I heard this concern and looking at the MAGA it is totally believable. But really, how can a country disenfranchise anyone, if they will issue a mandatory national ID? If it is not national (state or lower) or if it not mandatory (voluntary and/or paid for), then I can see parth for corruption. But if it is mandatory national document, issued to every citizen without exception and only to citizens, then I honestly don't see where the corruption may happen. If anything, USA SSNs are much bigger vector of corruption, a proven vector of corruption, but again, like with FPTP no one bats the eye.

I don't believe that. Even in the most backward places where people can barely read they can manage to get an ID. If anything, it would have a leveling effect, by decoupling the voter id from things like driving, which have nothing to do with voting.