Voting not being effective is quite a long way from voting not being allowed at all.
However, if we get to the point when control over their own lives is denied to people, it won't be unreasonable for them to resist. We've had slave revolutions before, and they weren't morally wrong.
> Voting not being effective is quite a long way from voting not being allowed at all
I disagree pretty strongly.
If the system is rigged in such a way that you mostly get the same outcomes no matter how people vote, that is only a razor thin line away from not being allowed to vote at all
I think it's an easy edge to tip over, but I'd stress that there is a difference between 'voting but having an unpopular stance' and 'denied basic rights'. There isn't a major political party that represents my views currently, for example, but it would be premature for me to start shooting because this is not (yet and hopefully ever) the same as my voice being explicitly ignored.