I thought you're agreeing with me about disenfranchisement and how it's evil, but I can see you can also infer that "Did you know 21 million undocumenteds voted?"...
As your article discusses, requiring that proof means paperwork, paperwork some people might not have (e.g. wives who changed their names).
For example in the UK, the Windrush scandal 1) deported British subjects because the government made irrational demands for documents to prove that they're citizens.
