Decisions on who may vote are left primarily to individual states and I have no problem with that. A few years ago politicians in California were mulling over the idea to let 14 year olds vote. I don’t like that idea but I don’t live in California either.
What exactly is your point? That Republicans are felons and will benefit from this law? That we need to give felons voting rights because we disagree with some laws, and we break the laws we disagree with? Are DUI and illegal possession of a firearm Republican crimes in your view? What’s the connection between your two examples?