For the duration of their incarceration, why is there an expectation that those incarcerated have a right to vote anyway. Of course there are people who are in prison who shouldn't be and there are those not in prison who should be (including many politicians).
In a relatively ideal (of course there is none) world, those who have basically abused the citizens of an area should not have a say in the politics of that area that then affect the citizens of that area.
Once those incarcerated have paid their dues and served their time, they become eligible to partake again as citizens and should have the same voting rights as anyone else.
If the reason is because of abusing community, then why stop at jail - what about the business owners that get fined for illegal activity against their workers and the public (which rarely results in jail time)? The impact of someone like Galen Weston price fixing pantry staples for years has an outsized negative effect on the community, is highly illegal, but is simply dismissed by a fine. Perhaps those who receive fines should not have voting power either for the abuse they've caused their community.
In a relatively ideal (of course there is none) world, those who have basically abused the citizens of an area should not have a say in the politics of that area that then affect the citizens of that area.
Once those incarcerated have paid their dues and served their time, they become eligible to partake again as citizens and should have the same voting rights as anyone else.