Don't flatter yourself, this isn't philo101 stuff, you don't have the background to engage with Derrida. It isn't a matter of saying he's right/wrong but this isn't basic stuff that a person with your philosophical education can grapple with.
I was thinking of countries with national IDs and lots of controls. I think in USA poor people basically get fined (well when they don't get shot cause they "interacted" with police) and are a revenue source.
Well voters ID are usually not a great solution, most countries have national ids that you need to carry at all times or you get in trouble so they used these. Considering poor people get controlled by police the most they tend to have ids too or they're fucked.