That's some pedantic bullshit. This comic is clearly designed to foster voter apathy by suggesting that voting is ineffective. It's part of the great lie that fascists have been using for a long time, that voting is pointless and you have no power. It's how they win elections.
The vast majority of free people have no interest in violent revolution, and if even half of non-voters decided to participate, fascists would never win another election. When they lose elections, fascists attempt to use force. But they are outnumbered.