This isn’t a hypothetical. We had literacy tests in the USA and they were designed to discriminate against minorities and newly freed slaves. And we have current politicians in power passing ID requirements with the explicit intention of preventing minorities, immigrants, and people of lower socioeconomic status from voting.

My examples were hyperbolic, but the underlying phenomenon already happens every single day. How many districts are gereymandered? How many polling places have been closed to limit voting in specific areas? Disenfranchisement is already part of the battle, and we the people are not winning it at the moment.