I understand that this is coming from other people and not you, it just sounds like a terribly forced argument that wouldn't stand much scrutiny, a function of the, "We need protection for our practice of rounding up bums and riding them into voting centers, giving them a few donuts, and telling them who to vote for" school of American politics, which I witnessed first-hand when my mother worked for a (Democratic, coincidentally, though I'm sure it happens all over) state senator.

As an aside, I think if someone is so apart from society as to not even have an ID, whatever their politics, they have pretty much tossed themselves out of the responsible voter pool anyway. I don't have much faith that someone who simply can't manage the rudimentary societal associations of having an ID is even capable of making an informed vote, but that's me. ;)