I'm no expert and could be missing something. But it doesn't look to me like we have an "inalienable" right to vote. Various amendments do say that our right to vote can't be revoked for certain specific reasons, e.g.,:

- The 15th amendment prohibits denying the right to vote on certain grounds (race, color) but doesn't go beyond that. - The 19th prohibits denying the right to vote based on sex. - The 24th prohibits denying the right to vote (in certain federal elections) based on outstanding tax bills. - The 26th prohibits denying citizens over 18 the right to vote based on age.

But this seems like a weirdly specific list. If the reason isn't on the list, is it still fair game? For instance, AFAIK some states don't let convicted felons vote.